Super Attack Damage Multipliers

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Basics
This is the order in which the game calculates damage output (each step prioritizes percentages over flat boosts):
 * Leader Skills
 * Passive Skills ("at start of turn", "when HP is x or above", "when facing 2 or more enemies", etc.)
 * Link Skills
 * Ki multiplier
 * Passive Skills ("when performing a Super Attack", "when Ki is x or more", "after being attacked", etc.)
 * SA multiplier
 * Type advantage/disadvantage multiplier; critical attack multiplier, etc.

The SA multiplier can be increased in three different ways:
 * Hidden Potential system (SA boost increases SA multiplier by 5% per level, up to 75%)
 * ATK boost from SA (for 1 or more turns, more info here)
 * ATK boost from allies' SA (usually only for 1 turn)

Example
ATK stat with Ki multiplier factored in: 241,568

Immense damage Lv.10 and SA boost +6 from Hidden Potential system: 505% + 30% = 535%

Final result: 241,568 * 5.35 = 1,292,388

Super Attack Multipliers
(*) Only for Super Strike Cards

(**) Only for Extreme Z-Awakened Cards Colossal & Mega-colossal Only for LR Cards

List of different SA Multipliers (Exceptions)
Cards that raise their ATK for more than 1 turn with their SA start off with a lower SA multiplier, so that they cause increased damage only starting from their second Super Attack. The same goes for units that boost allies' ATK with their SA, they have a lower SA multiplier so that only allies can benefit from the boost (an additional Super Attack would give a single boost to the unit and a double boost to allies). More info here.

Low

 * Low Damage +20%

Damage

 * Damage -20%

Huge

 * Huge Damage -13%
 * Huge Damage -50%

Mass

 * Mass Damage -20%

Extreme

 * Extreme Damage -20%
 * Extreme Damage -30%
 * Extreme Damage -50%

Supreme

 * Supreme Damage -20%
 * Supreme Damage -25%
 * Supreme Damage -30%
 * Supreme Damage -50%

Immense

 * Immense Damage -20%
 * Immense Damage -25%
 * Immense Damage -30%
 * Immense Damage -50%

Colossal

 * Colossal damage -20%

Mega-colossal

 * Mega-colossal damage -25%
 * Mega-colossal damage -30%
 * Mega-colossal damage -40%

Increasing Super Attack level
There are multiple rules involved in increasing a card's Super Attack level. Refer to Leveling Super Attack Guide for a breakdown of these rules, as well as a list of compatible cards for various characters.