Menace (This creature can't be blocked except by two or more creatures.)
As an additional cost to cast black permanent spells, you may pay 2 life. Those spells cost
less to cast if you paid life this way. This effect reduces only the amount of black mana you pay.
Whenever you cast a black permanent spell, target creature you control gets +1/+1 and gains menace (This creature can't be blocked except by two or more creatures.)
until end of turn.