Must be Special Summoned by an “Apex Tamer” card effect. Once per turn: You can return 1 monster to the hand. If your opponent controls an EARTH or FIRE monster: ● This card gains 700 ATK. ● Once per turn if your opponent activates an Effect: Destroy all card except "Apex" cards on the field. If this card has an "Apex Tamer" equipped: ● It cannot be destroyed by card effects.