| Name | Cost | Price |
|---|---|---|
| Mutagen Connoisseur | $0.07 | |
| Mutagenic Growth | $2.40 | |
| Mutagen Man, Living Ooze | $3.34 | |
| Mutalith Vortex Beast | $0.46 | |
| Mutant Town Musicians | $0.08 | |
| Mutational Advantage | $7.64 | |
| Mutavault | $3.85 | |
| Mutilate | $1.30 | |
| Mutinous Massacre | $0.30 | |
| Mutiny | $0.08 | |
| Muxus, Goblin Grandee | $13.15 | |
| Mu Yanling, Sky Dancer | $0.39 | |
| Mu Yanling, Wind Rider | $0.69 | |
| Muzzio's Preparations | — | |
| Muzzio, Visionary Architect | $0.90 | |
| Mwonvuli Beast Tracker | $0.28 | |
| Mycoid Shepherd | — | |
| Mycologist | $0.23 | |
| Mycoloth | $3.61 | |
| Mycosynth Lattice | $37.97 | |
| Mycosynth Wellspring | $0.26 | |
| My Deck is About a Seven | $20.00 | |
| My First Tome | — | |
| Myojin of Cryptic Dreams | $0.35 |