Call the Skybreaker [Commander 2015] Bolas when your opponent activates a

when your opponent activates a Spell Card: You can send this card and 1 other Fairy-Type monster from your hand to the Graveyard

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

using monsters from your hand or field as Fusion Materials

Set: Conflux Type: Sorcery Rarity: Uncommon Cost: {3}{G} Search your library for a Plains card

Set: Diamond & Pearl: Stormfront Type: Grass Rarity: Common Retreat cost: Colorless

Call the Skybreaker [Commander 2015] Bolas when your opponent activates aSet: 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.