Professor's Warning 
Instant
Appears in 897 of 18,635 decks (4.8%).
Appears with these commanders:
| Commander | Decks | Synergy ↓ |
|---|---|---|
| Cliffhaven Vampire | 1 | -0.04 |
| Greta, Sweettooth Scourge | 1 | -0.04 |
| Cormela, Glamour Thief | 1 | -0.05 |
| Araumi of the Dead Tide | 1 | -0.05 |
| Elas il-Kor, Sadistic Pilgrim | 1 | -0.05 |
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