Rocket Warrior [CT2-EN005] Secret Rare Sea Serpent during your End Phase: You

during your End Phase: You can target 1 "Memento" Spell/Trap in your GY

You can only use each effect of "Sleipnir the Runick Mane" once per turn

or when an opponent's monster declares an attack (Quick Effect): You can activate this effect

Set: Battles of Legend: Crystal Revenge Card type: Quick-Play Spell Rarity: Starlight Rare Discard 1 card

Rocket Warrior [CT2-EN005] Secret Rare Sea Serpent during your End Phase: YouSet: 2005 Collectors Tin Card type: Effect Monster Rarity: Secret Rare Attack: 1500 Defense: 1300 This effect is only active during the Battle Phase of your turn. Battle Damage to this card and this card's controller that they take from a battle involving this card becomes 0. After damage calculation, decrease the ATK of the monster that was attacked by this card by 500 points until the end of this turn.