Apex Devastator (Extended Art) [Commander Legends] XY129 you can Special Summon as

you can Special Summon as many "Crystal Beast" cards as possible from your Spell & Trap Card Zone

Set: Legendary Duelists: Ancient Millennium Card type: Field Spell Card Rarity: Rare When this card is activated: Banish 3 cards from the top of your Deck

Set: Aether Revolt Prerelease Promos Type: Sorcery Rarity: Mythic Cost: {X}{R}{R}{R} Destroy X target artifacts and/or creatures

Once during each of your turns

Apex Devastator (Extended Art) [Commander Legends] XY129 you can Special Summon asSet: Commander Legends Type: Creature Chimera Hydra Rarity: Mythic Cost: {8}{G}{G} Cascade, cascade, cascade, cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom of your library in a random order. Multiple instances of cascade each trigger separately.)