Boon Boost increases the duration of stat-changing skills (such as Tarukaja and Tarunda) cast by the user by 1 turn. The effect only works on Attack, Defense and Accuracy/Evasion; it cannot influence the timer of Taunt, although the stat-boosting buffs related to those skills (Fierce Roar and Witness Me) are still influenced by the timer.
If an enemy debuffs a buffed ally from +2 stages down to +1, the timer isn't overriden by the enemy's. Same goes for if a maximized buff by the enemy is debuffed by the ally. Otherwise, if the buffs and debuffs are in the enemy's advantage, the enemy's timer is prioritized.
Boon Boost can stack with Boon Boost EX, in which case the user's timer is extended to 6 turns.
|Shin Megami Tensei V||Your -kaja/-nda skills last 1 extra turn.||-|
Shin Megami Tensei V