Self Parameter Boost

Self Parameter Boost is a buff and a passive that increases Attack (Atk), Defense (Def), Recovery (Rec), and/or Critical Hit rate to the targeted unit only.
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 100%. It is possible to increase the parameter limits for Attack by breaking them.
Unlike its party-wide variant, self stat buffs can stack with the party-wide variant even provided by the same category of skills.
Self Parameter Boosts can also come in negative values. Crimson Phoenix Farlon and Vicious Twin-Edge Logan both have -50% Def self parameter boosts on their SBB.
==Stacking Rules==
*Any source of stat boosts capable of stacking will stack additively.
*No two self stat buffs of the same stat and target effect can stack if they come from the same source.
**Sacred Emperor Sirius’ Atk/Def/Rec buffs can stack with Silver Queen Gabriela’s self Atk/Def/Rec because Sirius’ buffs are party-wide while Gabriela’s stat buffs are to self.
==In-Game Descriptions==
Buff' 	Namespaced ID' 	In-Game Description'
Atk Down (Locked)	DESC_BUFF_ATKDOWNLOCK	Attack permanently decreases.
Def Down (Locked)	DESC_BUFF_DEFDOWNLOCK	Defense permanently decreases.
Rec Down (Locked)	DESC_BUFF_RECDOWNLOCK	Recovery permanently decreases.