Yikes
Undead Struggle / Zombie Struggle
Spell Quick-Play
You can only use this card name’s (2) effect once per turn.
(1) Target 1 Zombie monster on the field; make it either gain or lose 1000 ATK until the end of this turn.
(2) If this card is in your GY: You can shuffle 1 of your banished Zombie monsters into the Deck, and if you do, Set this card to your field. If this card was Set by this effect, banish it if it leaves the field.
Source: https://yu-gi-oh.jp/index.php?page=details&&id=380
