The Sword of Everafter

Ability

Timing: This can be set. If set, you can play it at the end of an opponent's turn.
■ [Return 1 allied {Alice or A7} card in play to your hand.] Deal damage to your opponent equal to the number of different {A7} cards in your graveyard, up to a maximum of 5. Your opponent can [DR 1] any number of times, with each time reducing this damage by 1.

"As long as I have the aid of my friends, no future of despair shall ever come to pass."