Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
: Regenerate Mire Boa. (The next time this creature would be destroyed, instead tap it, remove it from combat, and heal all damage on it.)
Swampwalk
: Regenerate Mire Boa.
Mire slime courses through its veins in place of blood. No sooner does it bleed than it opens its mouth to replace the loss.