Fiend Artisan gets +1/+1 for each creature card in your graveyard.
![Variable Colorless](/Handlers/Image.ashx?size=small&name=X&type=symbol)
![Black or Green](/Handlers/Image.ashx?size=small&name=BG&type=symbol)
,
![Tap](/Handlers/Image.ashx?size=small&name=tap&type=symbol)
, Sacrifice another creature: Search your library for a creature card with converted mana cost X or less, put it onto the battlefield, then shuffle your library. Activate this ability only any time you could cast a sorcery.