Artifact Creature — Wall 0/6, 4 (4)

Defender (This creature can't attack.)
{1}: Regenerate Living Wall.
Some fiendish mage had created a horrifying wall of living flesh, patched together from a jumble of still-recognizable body parts. As we sought to hew our way through it, some unknown power healed the gaping wounds we cut, denying us passage.
Illus. Anson Maddocks
Legal in Vintage (Type 1)
Legal in Legacy (Type 1.5)
Legal in Classic (MTGO)
Legal in Commander