Postal / Greven commander 2

Menace Postal Dude gets +X/+0, where X is the amount of life you’ve lost this turn. Whenever Postal Dude attacks, you may sacrifice another creature. If you do, you draw cards equal to that creature’s power and you lose life equal to that creature’s toughness.{flavor}“I’m sorry, apparently I’m feeling a little psychotic this morning.”{/color#ffffff}