Jolteon (28/90) [HeartGold & SoulSilver: Undaunted] Counter Trap You can only use this

You can only use this effect of "Knightmare Mermaid" once per turn

• Target 1 EARTH Machine Xyz Monster you control in Defense Position and 1 Spell/Trap your opponent controls

when exactly 1 other Pendulum Monster you control (and no other cards) is returned to your hand by an opponent's card effect (except during the Damage Step): You can Special Summon 1 monster from your hand with the same name as that returned to the hand

or by card effect) and sent to your Graveyard: You can target 1 monster they control

Set: Mattel Action Figure Promos: Series 3 Card type: Effect Monster Rarity: Parallel Rare Attack: 1200 Defense: 1400 When this card is destroyed by an opponent's attacking monster and sent to the Graveyard

Jolteon (28/90) [HeartGold & SoulSilver: Undaunted] Counter Trap You can only use thisSet: HeartGold & SoulSilver: Undaunted Type: Lightning Rarity: Uncommon Retreat cost: 0