Alien Warrior [POTD-EN027] Ultimate Rare Crossed Souls you can activate this card's

you can activate this card's effect

Set: Metal Raiders Card type: Normal Trap Rarity: Ultra Rare Attack: 0 Defense: 0 You can only activate this card when your opponent's monster declares an attack

"Right Arm of the Forbidden One"

Set: Astral Pack 7 Card type: Continuous Spell Rarity: Super Rare Change all face-up Level 4 or higher monsters to Defense Position

and destroy those cards

Alien Warrior [POTD-EN027] Ultimate Rare Crossed Souls you can activate this card'sSet: Power of the Duelist Card type: Effect Monster Rarity: Ultimate Rare Attack: 1800 Defense: 1000 When this card is destroyed by battle and sent to the Graveyard, place 2 A Counters on the monster that destroyed it. (If a monster with an A Counter battles an "Alien" monster, it loses 300 ATK and DEF for each A Counter during damage calculation only.)