Leshrac's Rite

Enchant creature
Enchanted creature has swampwalk. (It can't be blocked as long as defending player controls a Swamp.)

"Bind me to thee, my soul to thine. I am your servant and your slave. I shall hunger for your word and thirst for your blessing. Blood for blood, flesh for flesh, Leshrac, my lord." —Lim-Dûl, the Necromancer