Description

1 Tuner + 1+ non-Tuner Fiend monstersDuring your opponent’s Main Phase (Quick Effect): You can target 1 Effect Monster on the field; discard 1 monster, and if you do, negate that monster’s effect until the end of this turn. You can only use this effect of “Groza, Tyrant of Thunder” once per turn. If a Fiend monster(s) is sent from the hand to your GY (except during the Damage Step): You can apply 1 of the following effects to this card, until the end of this turn. Cannot be destroyed by battle. Cannot be destroyed by your opponent’s card effects. Your opponent cannot target this card with card effects.