Mire Kavu

Planeshift built its commons around the gold-and-allied-color hooks of the Invasion block, and this Kavu is the red half of a domain-adjacent idea: a creature priced as a vanilla beater that quietly rewards you for not being mono-red. Control a Swamp and you have a 4/3 for , a respectable rate for the era; fail to, and you are paying full freight for a 3/2 that dies to most of the format's cheap removal. The conditional is the whole bargain, and it costs you nothing in colors you were already playing: a Rakdos or Jund-shaped deck pays the same mana and gets the bonus for free, while a splash deck has to actually find the black source. That land-type check (rather than a color or mana-symbol check) is the telling detail. It does not care whether your Swamp produces black mana or how many you control past the first; one is enough, dual lands and fetchable nonbasics qualify, and the buff persists as a static modifier rather than a one-time trigger, so it scales up and down with the board as Swamps come and go. The result is a commons-slot creature engineered to make a two-color manabase feel slightly more rewarding than a one-color one, without ever punishing the off-color draw so hard that it becomes unplayable.