Mermail Abyssteus [CBLZ-EN083] Ultimate Rare Phantom Darkness When a Normal Spell Card

When a Normal Spell Card is activated

you can remove from play 1 Plant-Type monster from your Graveyard to change 1 monster your opponent controls to face-up Attack Position

Set: The New Challengers Card type: Xyz/Effect Monster Rarity: Ultimate Rare Attack: 2500 Defense: 2000 2 Level 4 monsters You can detach 2 Xyz Materials from this card

that target loses ATK and DEF equal to the ATK and DEF of the "Burning Abyss" monster sent to the Graveyard this way

or Monster Card effects

Mermail Abyssteus [CBLZ-EN083] Ultimate Rare Phantom Darkness When a Normal Spell CardSet: Cosmo Blazer Card type: Effect Monster Rarity: Ultimate Rare Attack: 1700 Defense: 2400 You can discard 1 other WATER monster to the Graveyard; Special Summon this card from your hand. When you do: Add 1 Level 4 or lower "Mermail" monster from your Deck to your hand. You can only use this effect of "Mermail Abyssteus" once per turn.