B-block, Bowmaster

Double strike, trample
{1}{w}{r}{g}: You, target opponent and the players to your left flip a coin. For each player losing a flip this way, B-block, Bowmaster, deals 3 damage to each creature that player controls.
Whenever B-block, Bowmaster, destroys a creature by damage, you may pay {4}. if you do, B-block, Bowmaster, gets +2/+2 until end of turn.
I shoot an exploding arrow 90 degrees upwards!