Mermaid Knight [DR2-EN137] Rare SWSH042 destroy Helm of Isen's Peak:

destroy Helm of Isen's Peak: Your hero gains +1 [Intellect] until end of turn

Battle-Forged during its controller's next turn if able

If each of those creatures could block all creatures that the other is blocking

Set: XY: Generations Type: Psychic Rarity: Common Retreat cost: Colorless

Set: Limited Edition Beta Type: Creature — Skeleton Wall Rarity: Uncommon Cost: {2}{B} Defender (This creature can't attack

Mermaid Knight [DR2-EN137] Rare SWSH042 destroy Helm of Isen's Peak:Set: Dark Revelation Volume 2 Card type: Effect Monster Rarity: Rare Attack: 1500 Defense: 700 While 'Umi' is on the field, this card can attack twice during the same Battle Phase.