Ashura King [POTE-EN048] Secret Rare

3+ Level 3 monsters While this card has material, it can attack a number of times each Battle Phase, up to the number of materials attached to it. At the start of the Damage Step, if this card battles: It gains 200 ATK. When another monster's effect is activated (Quick Effect): You can detach 1 material from this card; negate the activation, and if you do, destroy that card. You can only use this effect of "Ashura King" once per turn.