Gruul Delirium is an aggressive creature deck that uses Blossoming Defense and Rapid Rescue to protect threats and push through combat with Violent Urge and Break Out. Royal Treatment lets you both protect your own threats and answer their pumped attackers at instant speed, while Keen-Eyed Curator adds a cheap, efficient body to help you keep pace early. Demolition Field is too slow against their proactive aggression, and the extra Esper Origins is better swapped for board impact, so both come out. Hold up Royal Treatment mana when possible to blow out their combat tricks and stabilize the board.