I’m sure they mean well…
When you take 1000 or more damage by your opponent’s card effect, place 1 Twofold Counter on this card for each multiple of 1000 damage you took. During your opponent’s next End Phase: Destroy this card, then inflict 2000 damage to your opponent for each Twofold Counter that was on this card.
Double Return is a Continuous Trap Card releasing in Galactic Overlord. In the OCG, it’s a rare and should stay that way when it sees a TCG release.