In the game I'm working on, you control a fairly standard RPG party of characters. After performing enough successful attacks, the "charged" status is automatically applied to a player character. The "charged" status boosts the character's attack until they attack twice, are damaged, or consume the status effect to fuel a special ability.
I'm trying to incorporate a combo system, where two characters who have the "charged" status effect gain access to additional special attacks that can consume the status effect from multiple characters. When performed, the combo attack should end the turn of all player characters involved in the combo and consume the "charged" status effect from them.
Any idea how I would set up abilities like this?