| Name | Cost | Price |
|---|---|---|
| Meria, Scholar of Antiquity | $0.27 | |
| Meria's Outrider | $0.05 | |
| Merieke Ri Berit | $3.36 | |
| Mer Man | $0.05 | |
| Merrow Bonegnawer | $0.24 | |
| Merrow Commerce | $14.48 | |
| Merrow Reejerey | — | |
| Merrow Skyswimmer | $0.17 | |
| Merry, Esquire of Rohan | $1.14 | |
| Merry, Warden of Isengard | $0.32 | |
| Merseine | $0.15 | |
| Mesa Enchantress | $0.48 | |
| Mesa Falcon | $0.10 | |
| Mesa Pegasus | $0.30 | |
| Mesmeric Fiend | $1.13 | |
| Mesmeric Orb | $22.25 | |
| Messenger Drake | $0.03 | |
| Messenger Jays | $0.14 | |
| Metalhead | $0.14 | |
| Metallic Mimic | $0.47 | |
| Metallic Rebuke | $0.33 | |
| Metallic Sliver | $0.34 | |
| Metallurgeon | $0.14 | |
| Metallurgic Summonings | $2.52 |