Threshold — As long as seven or more cards are in your graveyard, Hunting Grounds has "Whenever an opponent casts a spell, you may put a creature card from your hand onto the battlefield."
Flying, trampleWhen Worldgorger Dragon enters, exile all other permanents you control.When Worldgorger Dragon leaves the battlefield, return the exiled cards to the battlefield under their owners' control.
At the beginning of each player's upkeep, Sulfuric Vortex deals 2 damage to that player.If a player would gain life, that player gains no life instead.
TramplePhantom Nishoba enters with seven +1/+1 counters on it.Whenever Phantom Nishoba deals damage, you gain that much life.If damage would be dealt to Phantom Nishoba, prevent that damage. Remove a +1/+1 counter from Phantom Nishoba.
Dark Depths enters with ten ice counters on it.: Remove an ice counter from Dark Depths.When Dark Depths has no ice counters on it, sacrifice it. If you do, create Marit Lage, a legendary 20/20 black Avatar creature token with flying and indestructible.
Dark Depths enters with ten ice counters on it.: Remove an ice counter from Dark Depths.When Dark Depths has no ice counters on it, sacrifice it. If you do, create Marit Lage, a legendary 20/20 black Avatar creature token with flying and indestructible.