Mimikyu (SWSH136) (Delta Species) (Celebrations) [Sword & Shield: Black Star Promos] Nixilis did I file that away

did I file that away under 'C' for 'Combo' or 'F' for 'Finisher

Set: Secret Lair Drop Series Type: Artifact Rarity: Mythic Cost: {1} Mana Vault doesn't untap during your untap step

Set: 30th Anniversary Edition Type: Creature — Serpent Rarity: Common Cost: {5}{U} Sea Serpent can't attack unless defending player controls an Island

Set: 30th Anniversary Edition Type: Artifact Rarity: Rare Cost: {4} Whenever a land is put into a graveyard from the battlefield

Then each creature you opponents control gets -1/-1 until end of turn for each poison counter its controller has

Mimikyu (SWSH136) (Delta Species) (Celebrations) [Sword & Shield: Black Star Promos] Nixilis did I file that awaySet: Sword & Shield: Black Star Promos Type: Water Rarity: Promo Retreat cost: Colorless