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Legality
| Format | Legality |
| 1v1 Commander | Legal |
| Archenemy | Legal |
| Canadian Highlander | Legal |
| Casual | Legal |
| Commander / EDH | Legal |
| Commander: Rule 0 | Legal |
| Custom | Legal |
| Duel Commander | Legal |
| Highlander | Legal |
| Legacy | Legal |
| Leviathan | Legal |
| Limited | Legal |
| Oathbreaker | Legal |
| Planechase | Legal |
| Premodern | Legal |
| Quest Magic | Legal |
| Vanguard | Legal |
| Vintage | Legal |
Barbed-Back Wurm
Creature — Wurm
(Black): Target green creature blocking Barbed-Back Wurm gets -1/-1 until end of turn.
EDH
0
/ 0
UNK
0
/ 0
