Ghidorah, King of the Cosmos - Illuna, Apex of Wishes - Ikoria: Lair of Behemoths (IKO)Mutate {3}{R G}{U}{U} (If you cast this spell for its mutate cost, put it over or under target non Human creature you own. They mutate into the creature on top plus all abilities from under it.) Flying, trample Whenever this creature mutates, exile cards from the top of your library until you exile a nonland permanent card. Put that card onto the battlefield or into your hand.

20 double-sided Battle Marks that work as both +1/+1 counters and -1/-1 counters

The loudest and most heartfelt cheers come from the cheap seats

or land card

"You've strayed

Vigilance Whenever Brimaz

Target sorcery card in your graveyard gains flashback until end of turn

Discard this card: Search your library for a Plains card

) When you cycle Titanoth Rex

destroy target permanent

this creature enters the battlefield with three +1/+1 counters on it

Exile Time Spiral

Enchanted creature gets +1/+1 for each Aura and Equipment attached to it