Norman Osborn can't be blocked.
Whenever Norman Osborn deals combat damage to a player, he connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)
1UBR: Transform Norman Osborn. Activate only as a sorcery.
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Green Goblin
Flying, menace
Spells you cast from your graveyard cost 2 less to cast.
Goblin Formula — Each nonland card in your graveyard has mayhem. The mayhem cost is equal to its mana cost. (You may cast a card from your graveyard for its mayhem cost if you discarded it this turn. Timing rules still apply.)

NOTE: Stock image, not actual card.