Wall of Junk

Artifact Creature - Wall 0/7, 2 (2)
Defender (This creature can't attack.)

Whenever Wall of Junk blocks, return it to its owner's hand at end of combat. (Return it only if it's on the battlefield.)¹
Urza saw the wall and realized that even if he tore every Phyrexian to pieces, they would still resist him.
Illus. Adam Rex

Gatherer Card Rulings [Nov 2009]

• 10/4/2004: It only returns to owner's hand if it is still on the battlefield at end of combat.

Format Legality	Legal in Vintage, Legacy Banned in Extended, Standard, MTGO Classic
Printings (1/6)	Urza's Saga (Uncommon)