At the beginning of your upkeep, sacrifice this creature unless you put two cards from your graveyard on the bottom of your library. {G}{G}, Discard a card: You may have this creature assign its combat damage this turn as though it weren't blocked.
Protection from black Threshold — This creature gets +1/+1 for each black permanent your opponents control as long as seven or more cards are in your graveyard.
{G}, {T}, Sacrifice this creature: Destroy target enchantment. Threshold — This creature gets +1/+1 as long as seven or more cards are in your graveyard.
Trample Threshold — As long as seven or more cards are in your graveyard, this creature gets +1/+1, is black, and has "{2}{B}, {T}: Destroy target green creature."