Professor's Warning 
Instant
Appears in 897 of 18,635 decks (4.8%).
Appears with these commanders:
| Commander | Decks ↓ | Synergy |
|---|---|---|
| Honest Rutstein | 3 | 0.01 |
| Loyal Subordinate | 3 | 0.0 |
| Mahadi, Emporium Master | 3 | -0.01 |
| Miara, Thorn of the Glade + Numa, Joraga Chieftain | 3 | -0.01 |
| Akawalli, the Seething Tower | 3 | -0.02 |
| Silver-Fur Master | 3 | -0.03 |
| Queza, Augur of Agonies | 3 | -0.04 |
| Minthara, Merciless Soul | 3 | -0.04 |
| Nadier, Agent of the Duskenel + Tormod, the Desecrator | 2 | 0.95 |
| Will-o'-the-Wisp | 2 | 0.95 |
| Hailstorm Valkyrie | 2 | 0.62 |
| Tenured Inkcaster | 2 | 0.62 |
| Bloatfly Swarm | 2 | 0.62 |
| Bloodsworn Squire // Bloodsworn Knight | 2 | 0.35 |
| Infesting Radroach | 2 | 0.35 |
| Falthis, Shadowcat Familiar + Keleth, Sunmane Familiar | 2 | 0.24 |
| Soulblade Renewer + Soulblade Corrupter | 2 | 0.17 |
| Uchbenbak, the Great Mistake | 2 | 0.12 |
| Amber Gristle O'Maul + Agent of the Shadow Thieves | 2 | 0.11 |
| Falthis, Shadowcat Familiar + Toggo, Goblin Weaponsmith | 2 | 0.08 |
| Sarevok, Deathbringer + Far Traveler | 2 | 0.06 |
| Marionette Apprentice | 2 | 0.06 |
| Yahenni, Undying Partisan | 2 | 0.03 |
| Sonorous Howlbonder | 2 | 0.02 |
| Undead Augur | 2 | 0.01 |
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