Malekith, the Witch King

Hexproof, Fear, Lifelink, Madness{7}

Vengeance cannot be rushed{4}—Force every opponent to discard two cards. For every creature discarded, this creature gains +1/3

The True Meaning of Fear—Once per your turn during any phase, Malekith may destroy any opposing creature, which causes all other opposing creatures to be debuffed with -2/-0