Immersturm Battlefield

The Realm subtype is the load-bearing idea: a permanent that isn't an Aura, isn't Equipment, and doesn't latch onto a single creature but instead collects them. Hosting is a repeatable sorcery-speed activation that piles creatures onto the enchantment itself, and each hosted body picks up +2/+0 and haste while it remains attached. That decoupling changes how a static buff behaves. A conventional anthem covers your whole board for free once it resolves; the Realm charges you per creature it wants to boost, so the buff is never automatic. Its real cost is sunk mana, paid a body at a time and gone if the enchantment is answered before it pays off. The haste rider is what makes that repeated payment worth it: a creature hosted the turn it arrives can attack immediately at +2/+0, so the host cost reads less like a one-time investment and more like a recurring finisher you can point at fresh bodies turn after turn. It rewards a board that wants to swing now and keep swinging, and it punishes leaning your entire aggression on one fragile source of reach. Whether Realm becomes a durable design pillar or a single experiment, the structural notion here (a buff creatures opt into one at a time, purchased rather than blanketed across the battlefield) is a genuinely different way to price a red aggro payoff.