Eragose, Dragon of Growth

Flying, Trample
Whenever you gain life, put that many +1/+1 counters on Eragose, Dragon of Growth.
Delirium -- {3}{g}{g}{g}: Regenerate Eragose, Dragon of Growth. Activate this ability only any time you could cast a sorcery and
if there are four or more card types in your graveyard.