MRPG Combat and Magic(OLD)2

From The Coursebooks Wiki
Jump to navigation Jump to search

This is the second version of MRPG Combat and Magic(OLD). The latest version is still at MRPG Combat and Magic.

This page contains the primary formulas for combat and magic use.

In Mage Wars RPG, a lot of percentages are used; all numbers are always rounded DOWN to the nearest whole-number or unit.


Combat is based around 2 things: Attack and Defense(hereto reffered to as AV and DV). It all comes down to your AV and DV scores. Player's have passive AV and DV scores(Base AV and Base DV); when a player makes an attack, their Variable AV(Var-AV) is calculated. if Var-AV is higher than the target's Variable DV(Var-DV), the attack is successful and goes on to damage calculation.

Calculating Base and Variable Values

AV and DV values rely on a variety of proficiencies and stats, as well as modifiers.

Base Attack Value

Base Attack Value(Base AV) is effectively as simple as Applicable Stat or Stats + Applicable Proficiency + Applicable Special Proficiency. Assuming none of these apply, the base AV is 0.

Each weapon has a particular stat associated with it. Some exotic weapons might have multiple stats associated with them. This does not affect damage, but impacts Base AV.

Base AV Example:

A Level 1 Human Warrior has Special Proficiency: Melee of 15, Weapon Proficiency: Bladed of 15, Strength 18, and is wielding a Longsword. His Base AV is 48.

Variable Attack Value

VAR-AV is determined each time the player makes an attack. The player gets 1d20 + 1d20 per-rank + Weapon Dice + Applicable Special Proficiency. So, using out example from Base AV, out player rolles 1d20 + 1d6 and adds 15. Their maximum possible Variable Attack Value then is 79(Base AV + Variable AV).

A player without an applicable special proficiency does not get to add that bonus to Var-AV.

Some Facets will allow the player to use the modified stat at this stage or to add in various stats.

The character sheet lists an AV range that is the base AV and Base AV + highest possible Variable Av. So if the character has a base AV of 40 and is wielding a longsword, the character sheet would list AV as 40-66, where 66 is the highest AV they can potentially roll.

Calculating Defense Value

Defense values are based primarily on AC, so mages and other non-armor-wearers will have much lower DVs than warriors or armor-wearing players.

Base Defense Value

Base AV is applicable Armor-Proficiency + AC. Each piece of armor is assigned its own AC-Value, which is totaled for the purposes of AC calculation. This does not include the shield(which has it's own AC for blocking), but the shield can be added through facets. In order to get max AC, the player needs to match all armor-weights. The armor proficiency used is determined by the player's chest-piece; whatever armor weight(light, medium, heavy) they wear on their chest determines which proficiency will be used. ONLY armors of this weight are used in calculating base AV.

Example: a player is wearing a (heavy)plate-armor chest piece and (light)leather boots. Armor Proficiency: Heavy is used and the AC of the boots is not included in the total base DV calculation.

Variable Defense Value

Players have a Variable Defense Value(Var DV) of buffed (Strength Modifier)d10 and (Dexterity Modifier)d6. So a player with 20 STR and 10 DEX would role 2d10 and 1d6. (See Proficiency Modifiers for a more information). The armor proficiency is then added again if the character is wearing all same-weight armor.

The Modifier is equal to .5 for every 5 stat points, rounded down. So using our Level 1 Human Warrior example(Found in detail here), his Strength Modifier is 1.5, and he does not have enough dexterity to use a Dexterity dice in calculating Var DV. He would get 1d10 for his Var DV.

Melee Damage Calculation

Melee and ranged weapons deal Mortal damage. Each weapon has it's own damage-calculation for base damage, the same dice used in rolling the Var-AV. Various Facets and other factors can affect this damage. Damage is rolled, and the dice-totals added together.

Once total Mortal damage is calculated, the target's AC is subtracted, however damage is not yet applied.

Each weapon can carry a variety of enchantments which add additional non-mortal damage(see: Damage Types). Six damage-types are magical and are calculated according to the targets spell resistance. Resistances are percentage-based and ALWAYS ROUNDED DOWN.

There is also untyped or "supplemental" damage, this can be placed on a weapon through crafted effects.

Once ALL damage is calculated, final damage is totaled and applied at the same time.


  • Magic System needs to be updated to be in line with the combat system

Magic is based on Success and Resistance and uses a very similar system to melee damage. All characters calculate Success and Resistance values(SV and RV) regardless of whether or not they are a mage. Obviously non-mages will have significantly lower RV than mages.

Just like in melee combat, if the caster's success is higher than the target's resistance, the spell is successful and hits the target.

Calculating Success Values

Since mages lack Special Proficiencies, the calculations work differently.

Base Success Value

All magic uses the Intelligence stat calculating Success and Strength in determining final damage. Hence, mages must be both strong and smart. The forumula changes depending on if the spell is being case from memory or directly from a spellbook.

  • From Memory:
    • Intelligence + Magic Proficiency + Lore
  • From Spellbook:
    • Intelligence + Magic Proficiency + Transcription

Exo-Mages also add their buffed Intelligence again to the final Base Success Value.

All endo-magic proficiencies use the buffed skill while exo-mages use unbuffed. This means endo-mages will land their attacks more often but exo-mages do more damage.

Variable Success Value

Variable Success Value is (Buffed Intelligence Modifier d12) + Applicable Proficiency.

Calculating Resistance Values

All characters have a Resistance Value or RV. RV is a generic value and is unrelated to damage type resistance.

Base Resistance Value

Unlike DV, Resistance is based more heavily on stats. Base RV is the sum total of all un-buffed stats + Buffed Intelligence. Therefore all characters will have a fairly similar Base RV, while Mages will, in general, be much higher. This is in line with the Steel against the Steel, Magic against the Magic philosophy of the game.

Variable Resistance Value

Each class-type has a different Variable RV-dice.

Battling Sorcererd12

Variable Resistance Values use the Buffed Intelligence Modifier, rounded down, added to their rank to determine the number of dice rolled. So a level 5 Mage with buffed intelligence of 30 would roll 4d20 to determine Var-RV. A level 9 Warrior would roll 2d8.

Note that using proficiency-swaps does not change your Var-RV dice. A Warrior who has traded proficiencies 8 times to become an Endo-Mage still uses a d8 for RV checks.

Area of Effect Spells

Area of Effect(AOE) spells begin either at the mage or at a specified target. Success Value for the mage is rolled only once with AOE, while each target makes a seperate Resistance-check.

Magic Damage Calculation

Spell damage is a little bit more straight-forward than melee damage. most spells will have a single MRPG Damage Types Damage Type(example: fireball deals fire damage).

So, if a fire-spell is successful, damage for the spell is rolled(as all spells have a variable damage) x Strength Modifier, and spell resistance is applied.

Some spells might have multiple damage-types, in this case each damage-type is rolled separately and totaled.

Damage is ALWAYS ROUNDED DOWN to the nearest whole-number.

Dodge and Evasion

Armor class, high DVs, and damage reduction all help, but the best option is never to get hit. Dodge and Evasion are Rogue/Ranger proficiencies, but any class make take them through proficiency swap. While dodge and evade are heavily dependant on the proficiency, it is possible to succeed without them.


Whenever DV is bypassed, the character will automatically make a dodge-attempt. Dodge can be thought of as similar to DV but with a different set of stats. Dodge is used to attempt to avoid a physical attack.

Armor determines how many dodge-dice are available:

Armor# of Dice

As you can see, the use of heavy armor effectively criples your dodge ability.

The dodge-dice used changes according to rank. Rank 1 uses a d8, Rank 2 uses d12, and Rank 3 is d20.

Dodge is also a factor of skill. As covered under stats, Dodge uses the unbuffed dexterity modifier as the base. Buffed dexterity is then added to the score as well as the dice. The final dodge-formula is: Dodge + (Dogde x modifier) + Dexterity + dice.

Only rogues actually possess the dodge-skill by default. This does not, however, mean dodge is impossible. Mages(who typicall do not wear armor, may still succeed in the occasional dodge-check. Other classes will probably want to invest in a proficiency-swap or focus on higher armor class.

The final dodge number then has to exceed the Variable AV of the incoming attack in order to successfully avoid it.


Evasion is essentially dodge for magic. Evasion relies on a combination of dexterity and intelligence, where as dodge is just dex-based. Whenever a player fails a resistance-check they will automatically attempt an evasion-check.

Armor# of Dice

Evasion uses the same system of dice as dodge, but all magic-users get an extra dice(since using magic makes you better at avoiding it). Also, just like in Resistance, changing proficiencies does not give you an extra dice.

Just like in dodge, Rank 1 uses a d8, Rank 2 uses d12, and Rank 3 is d20 for evasion checks.

The final evasion-formula is Evasion +(Evasion x modifier) + Intelligence + dice.

Again the Evasion score must beat the Var-SV of the incoming spell to successfully avoid it.


If you have a shield equipped you will automatically attempt to block any incoming melee attack. The block equation is Shield Proficiency + Strength + equipped Shield AC +1d20-per-rank. A successful block is the same as a dodge and negates all damage. Different types of shields block better, such as Tower Shields, but cause deficiencies in other areas.


The same critical rules apply to both weapons and magic.

Each d20 rolled in an attack roll is a chance for a critical(making quadruple-triple possible).

Weapon Criticals

Each weapon has a "Critical +" associated with it. this is added to the Buffed Dexterity Modifier to calculate the critical. In checking for critical hits, this number is added to the d20 roll, if the total number equals 20 or above, it qualifies as a critical.

Example: Longsword has a critical of +2, if the players rolls and 18 or higher, it counts as a critical hit.

Damage from critical hits is multiplied according to weapon size:

  • Medium x 2
  • Large x 3
  • Very Large x 4

Total multiplied is added for each critical. So if a character were to roll three criticals with a Very large weapon, damage would be multiplied by 12.

Critical damage increase is applied only to the weapon's Mortal Damage.

If a critical is scored but the weapon does not successfully strike the enemy, the critical has no effect.

Spell Criticals

Spell criticals are similar in that they function based on the roll of d20s in Var SV. Spells do not have an individual critical-modifier, instead only the Buffed Intelligence Modifier is added. Spells will likely crit less often.

Only spell-damage is increased by a critical. Effect-based spells see no benefit from a criticals. In a spell critical, all final-damage is doubled.

DV in In Combat

Mage Wars RPG vs. Mage Wars PnP handle combat DV differently. See Mage Wars PnP Combat Instances and Rounds for the PnP Explanation.

In Mage Wars RPG, each time a player or mob is the target of a melee or ranged attack(an attack role is made against them), Base DV of the target is reduced by 10 points for 3 seconds, stacking. The next successful attack resets the timer.

So two successful attacks within 3 seconds would reduce the target's DV by 20. A third attack within 3 seconds of the second attack would make it 30, and so on. This can be combined with various other abilities to quickly strip-down a targets DV to make it easier for a large attack.

This does not impact AC.

Attack Speed

Attack Speed is determined by Speed, size modifier and base weapon speed. Basically, your weapon can attack every X seconds - Buffed Speed Modifier + Size Modifier.


Stance can be thought of as a barter-system, a series of trade-offs. Give up some of one thing to get more of another.

There are five stances in all, and everyone starts out in the Central Stance. Stances can be changed any time, instantly, through hotkeys. They can even be applied to macros and changed just for the instant of attack.

The stances are:

  • Central
  • Guarded
  • Unguarded
  • Extended
  • Inverted

In detail:

  • Central: Central is the standard stance and uses all of the default values as detailed above.
  • Guarded: In Guarded Stance you give up 25% of your total, pre-resistance damage you deal in order to gain a 25% reduction to all you take.
  • Unguarded: In the Unguarded Stance, you trade 25% of your Base-DV in order to gain a 25% bonus to Base-AV.
  • Extended: In the Extended Stance you trade 25% of your pre-resistance damage for a 25% bonus to Base AV.
  • Inverted: In the Inverted Stance you trade 25% of your pre-resistance damage for a 25% bonus to DV.

The stances also have an impact on how much threat your character generates.


It is possible to(eventually) dual-wield any weapon in Mage Wars RPG, reguardless of practicality. See MRPG Dual-Wielding for complete rules.

See Also: