Startling Development 
Instant
Appears in 119 of 17,489 decks (0.7%).
Appears with these commanders:
| Commander | Decks ↓ | Synergy |
|---|---|---|
| Jeskai Elder | 1 | 0.99 |
| Slickshot Lockpicker | 1 | 0.99 |
| Gnottvold Hermit // Chrome Host Hulk | 1 | 0.99 |
| Imoen, Mystic Trickster + Hardy Outlander | 1 | 0.99 |
| Whispering Wizard | 1 | 0.49 |
| Star Whale | 1 | 0.49 |
| Daring Sleuth // Bearer of Overwhelming Truths | 1 | 0.33 |
| Cryptic Serpent | 1 | 0.33 |
| Fear of Failed Tests | 1 | 0.24 |
| Diviner Spirit | 1 | 0.19 |
| Mutagen Connoisseur | 1 | 0.16 |
| Feywild Caretaker | 1 | 0.16 |
| Emrakul's Messenger | 1 | 0.14 |
| Viral Drake | 1 | 0.12 |
| Tomebound Lich | 1 | 0.08 |
| Reef Worm | 1 | 0.08 |
| Messenger Falcons | 1 | 0.07 |
| Animating Faerie // Bring to Life | 1 | 0.06 |
| Slinn Voda, the Rising Deep | 1 | 0.06 |
| Worldheart Phoenix | 1 | 0.04 |
| Stormcatch Mentor | 1 | 0.04 |
| Najal, the Storm Runner | 1 | 0.02 |
| Trygon Prime | 1 | 0.02 |
| Nightveil Predator | 1 | 0.02 |
| Ambassador Blorpityblorpboop | 1 | 0.02 |
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