Elena, Autum's Maiden

Avatars, plants, fungus, saprolings, and
elementals you control have +1/+1.
{b/g}: Target creature gains Deathtouch or +1/+1.
{b/g}{b/g}: Sacrifice a creature, return 2 creature cards
from your graveyard to your hand.
{b/g}{b/g}{b/g}: Create a 0/0 green Saproling creature
token with +1/+1 for each creature in a graveyard.
{b/g}{b/g}{b/g}{b/g}: Destroy target creature, you gain
life equal to it's toughness.