Mecha Phantom Beast Tetherwolf

If this card is Normal Summoned: Special Summon 1 "Mecha Phantom Beast Token" (Machine/WIND/Level 3/ATK 0/DEF 0). This card's Level is increased by the total Levels of all "Mecha Phantom Beast Tokens" you control. While you control a Token, this card cannot be destroyed by battle or card effects. Once per battle, during the Damage Step, when this card battles an opponent's monster (Quick Effect): You can Tribute 1 Token; this card gains 800 ATK, until the end of this turn.