Professor's Warning 
Instant
Appears in 665 of 13,985 decks (4.8%).
Appears with these commanders:
| Commander | Decks ↓ | Synergy |
|---|---|---|
| Shirei, Shizo's Caretaker | 118 | 0.36 |
| Tor Wauki the Younger | 79 | 0.26 |
| Wilson, Refined Grizzly + Agent of the Shadow Thieves | 44 | 0.33 |
| Kulrath Knight | 30 | 0.43 |
| Witherbloom Apprentice | 18 | 0.05 |
| Corpsejack Menace | 16 | 0.18 |
| Killian, Ink Duelist | 13 | 0.01 |
| Mauhúr, Uruk-hai Captain | 12 | 0.75 |
| Winding Constrictor | 12 | 0.2 |
| Ashiok's Adept | 8 | 0.57 |
| Kalain, Reclusive Painter | 8 | 0.11 |
| Crypt Rats | 8 | 0.08 |
| Mr. Orfeo, the Boulder | 8 | 0.0 |
| Azra Oddsmaker | 8 | -0.01 |
| Tormented Hero | 7 | 0.54 |
| Falthis, Shadowcat Familiar + Kediss, Emberclaw Familiar | 7 | 0.45 |
| Oona's Blackguard | 7 | 0.39 |
| Unforgiving One | 7 | 0.36 |
| Yargle, Glutton of Urborg | 7 | 0.12 |
| Ancient Lumberknot | 7 | 0.09 |
| Stormclaw Rager | 7 | 0.07 |
| Ravenous Squirrel | 7 | 0.0 |
| Dina, Soul Steeper | 7 | -0.03 |
| Murderous Redcap | 6 | 0.05 |
| Conductor of Cacophony | 5 | 0.45 |
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