Aligned Hedron Network [Battle for Zendikar Prerelease Promos] Hydra Avatar Set: Urza's Saga Type: Creature

Set: Urza's Saga Type: Creature — Shapeshifter Rarity: Rare Cost: {3}{U}{U} {U}: Untap Morphling

but at a price that was etched on her fate

Assign each pile to a different one of those attacking creatures at random

Centaur Chieftain has "When Centaur Chieftain enters the battlefield

Aligned Hedron Network [Battle for Zendikar Prerelease Promos] Hydra Avatar Set: Urza's Saga Type: CreatureSet: Battle for Zendikar Prerelease Promos Type: Artifact Rarity: Rare Cost: {4} When Aligned Hedron Network enters the battlefield, exile all creatures with power 5 or greater until Aligned Hedron Network leaves the battlefield. (Those creatures return under their owners' control.) The last hedron slotted into place, locking Ulamog in an infinite loop of binding energy.