Icejade Curse

While there are an "Icejade" monster and "Icejade Cenote Enion Cradle" on the field, your opponent cannot activate the effects of monsters they control the turn they were Summoned. When a monster(s) is destroyed by a battle involving your "Icejade" monster: You can target 1 of those destroyed monsters; inflict damage to your opponent equal to its original ATK. You can only use this effect of "Icejade Curse" once per turn.