Rockman X DiVE: Crit Rate/Crit Damage formula explained and showcase
Key points in time line:
0:00 Basic knowledge
5:55 Crit Damage Investigation
10:13 How crit rate is calculated and how buff affect crit rate
12:18 CRID (CRIR) passive explained & showcase
26:15 How buffs and debuffs affect each other
32:36 How "mastery passive" works
Summary:
1/ CRIR/CRID:
Both Crit Rate and Crit Damage are calculated by the following formula:
CRIR/CRID = (Base + CRIR/CRID points) x (1 + CRIR/CRID buff)
Where
_ Base: 15% for CRIR, 150% for CRID
_ CRIR/CRID points: These are points obtained through weapons and passives (100 points = 1%). Passive skills say things like "CRID is increased by x (points) when using this weapon" or "Increase CRI by x (points) when using this weapon"
_ CRIR/CRID buff: The summation of all CRIR/CRID percentage. Buff acts as "plus" and debuff acts as "minus". With buffs say things like "gain CRIR/CRID enhancement that increases CRIR/CRID by x %" or debuffs like "induces CRI Weakened which reduces CRIR by x %" (Currently, only Cinnamon has this debuff)
2/ Weapon's passive:
There are 3 types of passives:
_ Passive skills only work when attacking with that weapon and when that weapon is equipped (stat will not be added when using the skill): CRIR, CRID, ATK
_ Passive skills work when that equipped: DEF
_ Passive skills work when that equipped as Main/Sub weapon: HP
3/ Buffs/Debufs explained:
Due to how buff and debuff are additive with each other in this game, you need to calculate how your buff is always positive compared to your opponent's debuff so that your damage will never be reduced to 1.
Ex: debuff says thing like "weaken the target's DEF and increase damage taken by 20%" equal to buff says thing like "get damage enhancement status that increases the damage dealt by 20%".
Note: The passive mastery does not fall into this category as it is not a buff or debuff
4/ Everything else:
Others are multiplicative with each other. The reason why I make the mastery part separate is because many people confuse addition and multiplication. Separating it will make it easier to understand:
If it were really addition then it would have beenlike this
198 x (1 + 0.24 + 0.15) = 275.22
However, the result shows that it is multiplication
198 x 1.24 x 1.15 = 282.348
(Here, there is no round up or round down multiplier so there will be different but not much, the results are close to what the reality shows 35:57)
One of the reasons people don't understand the game's calculation is because the difference between multiplication and addition is very small in theory:
(1 + 0.24 + 0.15) = 1.39
VS
1.24 x 1.15 = 1.426
So it feels like you're close to being right, but going wrong somewhere but as long as you are observant, knowing where to multiply and when to add it can be very easy to calculate.
5/ Buff in pvp (current ranked map):
Middle buff: 20%
Tortoise: 30%