Seviper, the Two-Headed

Haste, trample, double strike
Brainsplit: Whenever an opponent cast a spell that targets Seviper, the Two-Headed, counter it unless he or she discards a card.
Whenever Seviper, the Two-Headed deals combat damage to a player, put a +1/+1 counter on it.
Eldrazi creatures you control with +1/+1 counters on them have Brainsplit.

Twice the destruction, twice the horror, yet half the intelligence.