Call the Skybreaker [Commander 2015] Bolas using monsters from your hand

using monsters from your hand or field as Fusion Materials

Set: Phantom Darkness Card type: Effect Monster Rarity: Common Attack: 1700 Defense: 300 When this card is Special Summoned by the effect of a "Gladiator Beast" monster

if all the monsters that were used for the Synchro Summon of that monster are in your Graveyard

If you control an Urza's Power-Plant and an Urza's Tower

You can only use this effect of "Generaider Boss Room" once per turn

Call the Skybreaker [Commander 2015] Bolas using monsters from your handSet: Commander 2015 Type: Sorcery Rarity: Rare Cost: {5}{U R}{U R} Create a 5 5 blue and red Elemental creature token with flying. Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.) It hears and answers every orison across Shadowmoor.