Strength of Unity

Domain is the mechanic that turned a five-color block's mana ambition into a payoff, and this Aura is the cleanest read on how it scaled: stack basic land types and the bonus climbs to a ceiling of +5/+5 when all five are online. The Aura's familiar liability is doubled by that count: you are committing four mana and a card to a creature an instant-speed removal spell can two-for-one, and the bigger the buff, the worse the exchange feels. What makes the domain count interesting is that it rewards exactly the deckbuilding the era was pushing players toward, fixing your mana for domain spells and then cashing the same lands in again for combat size. It does not ask for five colors of spells, only five basic land types among your lands, which is a subtler requirement that dual lands and fetch-style fixing answer well. A pure beatdown enabler with no protection of its own, it lives or dies on whether the enchanted body already mattered before the Aura landed.