Professor's Warning 
Instant
Appears in 1,349 of 28,395 decks (4.8%).
Appears with these commanders:
| Commander | Decks | Synergy ↓ |
|---|---|---|
| Unforgiving One | 12 | 0.33 |
| Feaster of Fools | 4 | 0.32 |
| Falthis, Shadowcat Familiar + Dargo, the Shipwrecker | 5 | 0.31 |
| Kalakscion, Hunger Tyrant | 6 | 0.29 |
| Sarevok, Deathbringer + Guild Artisan | 3 | 0.29 |
| Sarevok, Deathbringer + Feywild Visitor | 2 | 0.29 |
| Painsmith | 1 | 0.29 |
| Falthis, Shadowcat Familiar + Armix, Filigree Thrasher | 1 | 0.29 |
| Innocent Traveler // Malicious Invader | 1 | 0.29 |
| Crowd of Cinders | 1 | 0.29 |
| Tor Wauki the Younger | 136 | 0.25 |
| Bloodsworn Squire // Bloodsworn Knight | 2 | 0.24 |
| Xathrid Slyblade | 2 | 0.24 |
| Corrosive Mentor | 2 | 0.24 |
| Cursed Wombat | 5 | 0.22 |
| Carrion Grub | 1 | 0.2 |
| Tormod, the Desecrator + Armix, Filigree Thrasher | 1 | 0.2 |
| Taborax, Hope's Demise | 14 | 0.19 |
| Corpsejack Menace | 25 | 0.18 |
| Sarevok, Deathbringer + Street Urchin | 3 | 0.17 |
| Uchbenbak, the Great Mistake | 3 | 0.17 |
| Winding Constrictor | 17 | 0.16 |
| Sarevok, Deathbringer + Criminal Past | 9 | 0.16 |
| Falthis, Shadowcat Familiar + Keleth, Sunmane Familiar | 2 | 0.15 |
| Soulblade Renewer + Soulblade Corrupter | 2 | 0.15 |
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