| Mothers Yamazaki | 598 |
| Mox Poison | 608 |
| Multani, Yavimaya's Avatar | 248 |
| Muraganda Eldrazi | 519 |
| Mutilate | 45 |
| Mystic Sanctuary | 110 |
| Mystical Dispute | 31 |
| Nalathni Dragon (2 variants) | 197 |
| Narod, the Beige Flower | 599 |
| Narset, Parter of Veils | 32 |
| Natural Order (2 variants) | 210 |
| Naturalize 2 | 579 |
| Nature's Claim | 69 |
| New Master of Arms | 520 |
| Night of the Flying Merfolk | 532 |
| No-Regrets Egret | 533 |
| Noble Ox | 521 |
| Nomads en-Kor (2 variants) | 149 |
| Norwood Priestess (2 variants) | 211 |
| Noxious Revival | 70 |
| O-Kagachi, Vengeful Kami | 138 |
| Oath of Druids (2 variants) | 212 |
| Oddric, Lunar Marquis | 551 |
| Omenpath to Naya | 616 |
| Omnipresent Impostor | 504 |
| Once Upon a Time | 71 |
| Oracle of the Alpha | 259 |
| Orb of Origin | 609 |
| Pact of Negation (2 variants) | 169 |
| Panglacial Shinobi | 534 |
| Paradoxical Outcome | 33 |
| Path to Exile | 15 |
| Penumbra Umbra | 580 |
| Phyrexian Seedling | 581 |
| Pinchy McStingbutt | 552 |
| Pitiless Plunderer | 46 |
| Plain Walker | 522 |
| Planeswalkerificate | 565 |
| Plant a Sapling // Fully-Grown Treefolk | 582 |
| Pokey, the Scallywagg | 600 |
| Ponder | 34 |
| Power Matrix (2 variants) | 229 |
| Pox (2 variants) | 185 |
| Preordain | 35 |
| Prismatic Ending | 16 |
| Processing Plant | 617 |
| Proteus Staff | 140 |
| Pyroblast (2 variants) | 198 |
| Pyromancy 101 | 566 |
| Questing Cosplayer | 583 |