Parameter Boost

Stat Boost is a buff and a passive that increases Hit Points (HP), Attack (Atk), Defense (Def), Recovery (Rec), and/or Critical Hit rate. This can buff either a specific element (becoming an Elemental Stat Boost) or buff all elements (becoming a generic Stat Boost).

There is no cap to how much stats can be boosted; however, the internal limit for Atk/Def/Rec is 99999 and the internal limit for Critical Hit rate is 70%. It is possible to increase the parameter limits for Attack and HP by breaking them.

Stacking Rules

 * Any source of stat boosts capable of stacking will stack additively.
 * No two stat buffs of the same stat and target effect can stack if they come from the same source.
 * Vesta Padma Michele’s Atk buff on her SBB can stack with stats provided on her Leader Skill because the Atk buff provided by SBB is a buff and the stat boosts provided on Leader Skill are passives.
 * Sacred Emperor Sirius’s Atk/Def/Rec buffs cannot stack with Emerald Tusk Daze’s because they come from the same source (BB/SBB) and they both target all allies.
 * Immortal Firewing Blaze’s Atk buff on his SBB can stack with his self Atk buff on his SBB because both buffs have different target effects.

Trivia

 * While there is no cap or internal limit to how much the Atk, Def, and Rec stats can be boosted in the Global version of the game, there is a cap of 600% in the Japan version of the game.
 * There are effects that provide stat boosts for the first few specified turns from units and spheres such as Mystical Talon Rhein’s Leader Skill and Amenonuhoko, but they carry different Passive ID, which means that they can stack with regular stat boosts.
 * Stacking rules, however, still apply for this passive - Rhein’s Leader Skill and Amenonuhoko will not stack with each other due to having the same Passive ID and target effect (for the unit under both of these effects).

Relevant Links

 * List of Status Boost Type Spheres