Whenever a Food is put into a graveyard from the battlefield, I'll put two +1/+1 counters on Ygra
- Poison messes up the AI as it will almost always retreat their Pkm if it will be knocked out soon enough
Though is a substantial cost, the option to exile cards out of opponent's graveyards is increasingly more important and makes you salivate for the self-mill deck that leaks reanimation targets into the graveyard
Elf decks have lots of green creatures and tokens lying around, so this card comes out of the sideboard against affinity decks and the like
He gives you an excuse to build around a wonderfully weird collection of bayou critters, and if your ideal Commander deck is a pile of Pests, Bats, Insects, Snakes, and Spiders slowly becoming enormous together, Blech is the perfect creature to lead it