Alector, Sovereign of Birds (TU06-EN011) - Turbo Pack: Booster Six Unlimited

If your opponent controls 2 or more face-up monsters of the same Attribute, you can Special Summon this card (from your hand). Once per turn: You can target 1 face-up card on the field; its effect(s) on the field are negated during this turn. There can only be 1 face-up "Alector, Sovereign of Birds" on the field.