Bolg, Scion of Azog

Trample, haste
Whenever Bolg attacks, you may sacrifice up to
three other creatures you control. If you do, Bolg
gets +X/+0 until end of turn, where X is the
total power of the creatures sacrificed this way.
{x}{x},{t}, Pay X life: Create X 2/2 black and red
Orc creature tokens.