Defender (This creature can't attack.)
{B}: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Wall of Bone

30th Anniversary Edition

The Wall of Bone is said to be an aspect of the Great Wall in Hel, where the bones of all sinners wait for Ragnarok, when Hela will call them forth for the final battle.

"Graveyards are sacrilege! A waste of perfectly good bones."
—Keren-Dur, necromancer lord

Duel Decks Anthology: Garruk vs. Liliana

Duel Decks: Garruk vs. Liliana

Magic 2010

A skeletal wall, strengthened by the souls of traitors, rings the city of the Eastern Paladin.

Seventh Edition

"Good neighbors make good walls."
—Jakkarak the Maimer