Dyranos, the Firebreather

You may pay {r}{r}{r}{r} and pay 6 life rather than
pay Dyranos' mana cost. If you do, creatures you
control gain first strike until end of turn.
Flying, first strike, haste.
When Dyranos enters the battlefield, he deals X
damage divided as you choose among any
number of targets, where X is the amount of
life you've lost this turn.