Obelisk, le Tourmenteur BP02-FR125

Requires 3 Sacrifices for its Normal Summon (cannot be Set Normally). The Normal Summon of this card cannot be negated. When it is Normally Summoned, cards and effects cannot be activated. Cannot be targeted by Spells/Traps or card effects. Once per turn, during the End Phase, if this card was Special Summoned, send it to the GY. You can Tribute 2 monsters, destroy all monsters your opponent controls. This card cannot declare an attack the turn this effect is activated.