Imperial Battleship, Zarkon

When a "Child of the" Legendary Creature
enters the battlefield under your control,
destroy 2 target nonland permanents.
At the beginning of each player's upkeep, target
1 "Battleship" artifact in your Graveyard that
was not on the battlefield last turn, and return
it to the battlefield under your control, but
sacrifice it at the end of the next end step.