Predator Dragon [Shards of Alara] Skeleton Wurm Enchanted creature can't block creatures

Enchanted creature can't block creatures you control

I call it preparation

When Niblis of the Mist enters the battlefield

and all the while the great beast slumbered

Your creatures aren't destroyed due to damage or deathtouch and aren't put into a graveyard due to having 0 or less toughness

Predator Dragon [Shards of Alara] Skeleton Wurm Enchanted creature can't block creaturesSet: Shards of Alara Type: Creature Dragon Rarity: Rare Cost: {3}{R}{R}{R} Flying, haste Devour 2 (As this enters the battlefield, you may sacrifice any number of creatures. This creature enters the battlefield with twice that many +1 +1 counters on it.) Dragons make for spiteful gods.