Here are some new (and one old) utility ASMCs to use as part of events.
Manual Stat Changer will let you modify the stats of one unit by character ID, or of entire factions.
Rescued Checker will let you check if the specified character is being rescued, or optionally if they’re being rescued by the active unit.
Status Setter will let you set a status effect of arbitrary length to the specified character, or to the active character.