Corpse Knight (Promo Pack) [Core Set 2020 Promos] Plains Swamp you can Normal Summon it

you can Normal Summon it to have be treated as an Effect Monster with this effect: •When this card declares an attack

Set: Lord of the Tachyon Galaxy Card type: Effect Monster Rarity: Ultimate Rare Attack: 2500 Defense: 2000 You can discard 4 other "Mermail" monsters to the Graveyard

Set: Extreme Victory Card type: Normal Spell Rarity: Common Attack: 0 Defense: 0 Activate only if you control a face-up "Red Dragon Archfiend"

Set: Archenemy Type: Land Rarity: Common Secluded Steppe enters the battlefield tapped

Set: Rise of the Duelist Card type: Effect Monster Rarity: Common Attack: 1600 Defense: 0 If this card is Normal or Special Summoned: You can take 2 "Darklord" monsters from your hand or Deck with different Levels

Corpse Knight (Promo Pack) [Core Set 2020 Promos] Plains Swamp you can Normal Summon itSet: Core Set 2020 Promos Type: Creature Zombie Knight Rarity: Uncommon Cost: {W}{B} Whenever another creature enters the battlefield under your control, each opponent loses 1 life. "With each knight that rode out from the bone white keep, the queen's soldiers felt their courage failing." Krinnea, *Siege of the Bone Spire*