Les cinq cartes Twinmaw Stormbrood, Whirlwing Stormbrood, Purging Stormbrood, Runescale Stormbrood et Disruptive Stormbrood, de l'édition Tarkir: Dragonstorm, forment un cycle appelé "Stormbrood" de dragons, chacun possédant un Omen d'une couleur ennemie.

Source ("There are two cycles of Dragons with Omen spells, one at common where the Dragons are the same color as the Omen spell and one at uncommon on monocolor Dragons with an Omen spell of the Dragon's enemy color. [...] The two-color cards in a wedge set want to be enemy-color cards, as that's what is supported in a wedge-focused Limited environment. Players can start with an enemy-color pair, allowing them to move into one of two three-color wedge factions. If you take an ally-color pair, that card can only go in one wedge. [...] Uncommon [...] A cycle of monocolor Dragons with an enemy-color Omen spell")