Damage Scaling
As you combo the opponent, you will notice that each attack does less damage than they would individually. This is due to damage scaling, otherwise known as damage proration. To determine how much damage each hit in a combo will deal, there is a formula:
Damage = (Base Damage of the attack) * (Character Combo Rate) * (P1 of the first hit) * (P2 of all the preceeding hits in a combo) * (any special prorations)
|Ragna, Jin, Noel, Arakune, Bang, Carl, Mu, Makoto, Valkenhayn, Relius||80%|
|Tsubaki, Hazama, Litchi, Platinum||70%|
|Proration Type||Description||Applies To||Affects Recover/Untech Time|
|P1||Applied only when the first hit of a combo||Next attack onwards||yes|
|P2||Applied to every hit of a combo||Next attack onwards||yes|
|Same Move Proration (aka Repeat Proration)|| Only some moves have Repeat Proration.
Applied when the same move is used 2+ times in a combo
|Current attack onwards||yes|
|Bonus|| Only some moves have Bonus Proration. Proration value of greater that 100%.
Using the move 2+ in a combo will not add bonus proration.
|Next attack onwards||yes|
|Combo Rating||Applied 2nd hit onward. Varies with each character||2nd hit onwards||no|
|Guard Crush||Applied to attacks taken while guard crushed||All||no|
|Special||Only some moves have Special Proration (such as Hakumen in Mugen). See character frame data for details.||All||no|
|Negative Penalty||Applied to combos when opponent is in Negative Penalty State||All||no|
|Danger||Applied to combos when opponent is in Danger State||All||no|
Some attacks ignore this damage scaling. For example all throw do their full damage and ignore any damage scaling. Most Distortion Drives do at least 20% of their damage. See the Minimum Damage section for details.
Example: Calculating Lambda Combo Damage <toggledisplay> Act Parser: Cavalier > 5D > 5D > Act Parser: Cavalier > 5D
|Attack||Base Damage||P1||P2||Repeat||Formula||Actual Damage|
|#2 5D||480||-||89%||-||Combo Rating * (P1 from #1) * (P2 from #1)||306|
|#3 5D > D||200||-||94%||-||Combo Rating * (P1 from #1) * (P2 from #1, #2)||113|
|#4 Cavalier||1500||-||94%||75%||Combo Rating * (P1 from #1) * (P2 from #1 - #3) * Repeat||600|
|#5 5D||480||-||-||-||Combo Rating * (P1 from #1) * (P2 from #1 - #4) * Repeat||180|
Final Combo Damage: 2699 </toggledisplay>
 Hitstun Decay
|32% ≤ P < 37%||0F||-2F|
|27% ≤ P < 32%||0F||-3F|
|22% ≤ P < 27%||-2F||-4F|
|18% ≤ P < 22%||-3F||-5F|
|14% ≤ P < 18%||-4F||-6F|
|10% ≤ P < 14%||-5F||-8F|
|7% ≤ P < 10%||-7F||-10F|
|4% ≤ P < 7%||-10F||-13F|
|2% ≤ P < 4%||-14F||-17F|
As a combo goes on and proration increases, the amount of hitstun the opponent receives drops. Hitstun duration is affected solely by four types of proration: Start Proration (P1), Proration Multiplier (P2), Same Move Proration, and Bonus Proration. When the combined calculated proration value of these goes below 27% (on the ground) or 37% (in the air), the hit-stun duration begin to drop. This means that when you add attacks that have lenient proration into your combo, it'll be easier to lengthen the combo with more attacks.
 Minimum Damage
Most Distortion Drives (supers) in BlazBlue will always do 20% of the damage of attack at minimum regardless of damage scaling (Other distortion drives have a higher minimum). This means that using supers at the end of combos is a good way to tack on some extra damage whereas in the previous version of BlazBlue, it would be a waste of Heat since the super would do very, very little damage and the Heat would be better saved for later use.
Note that this does not apply to time-based supers like Ragna's Blood Kain or Taokaka's Almost Becoming Two
In addition, throws always do 100% of their original damage regardless of how much damage scaling has occured beforehand (assuming the opponent does not break your throw). They will also not have their damage boosted by negative penalty or danger state.
Minimum damage is not affected by Character Combo Rate, Move-Specific Changes, Negative Penalty State, or Danger State prorations.
 Chip Damage
Special and Super attacks in BlazBlue (and most other fighting games) do small amounts of damage even if they are blocked.
Most Special and Super attacks do 5% of their base damage on block. This chip damage can be prevented by using Barrier Guard. Additionally, there are certain moves that are defined to do more or less chip damage (see move notes for details). Ragna's drive (Soul Eater) does chip damage which is ALSO absorbed by Ragna and converted into health. Soul Eater can be prevented with Barrier Guard.
 Danger State / Negative Penalty
When in the Danger State, the word DANGER will appear overlayed on your health bar, and you take more damage: the first hit of a combo does 1.5x more damage; all subsequent hits deal 1.2x more damage. Throws still only do their base damage.
When in Negative Penalty, your character will have a bunch of vertical red lines around you and you will take more damage just like Danger State: the first hit of a combo does 1.5x more damage; all subsequent hits deal 1.2x more damage. Throws still only do their base damage.
Negative Penalty happens when you perform too many "Defeinsive Actions" in a row without performing any "Offensive Actions". Performing Backsteps, walking backwards, air dashing backwards all count as Defensive Actions. Running towards the opponent, attacking the opponent, etc. count as Offensive Actions. Your character will flash red and the screen will show the text "Negative Warning" before you actually get Negative Penalty, so use that as a sign to stop turtling!
Note that you can have both Danger State and Negative Penalty at the same time! This means that you can take 125% more damage if you have both effects at the same time! Be careful!
 Poison and Life Drain
Bang's Poison Nail slowly drains the opponent's life until either the maximum amount of life has been dealt (800 damage) or the opponent hits Bang. Poison can also never kill the opponent. Bang's Poison Nail is currently the only attack that deals poison status in the entire game.
Ragna's Blood Kain drains his life until his Blood Kain meter is depleted. Ragna can also not die from this life drain effect.