Startling Development 
Instant
Appears in 119 of 17,489 decks (0.7%).
Appears with these commanders:
| Commander | Decks | Synergy ↓ |
|---|---|---|
| Mischievous Catgeist // Catlike Curiosity | 3 | 0.99 |
| Clone | 2 | 0.99 |
| Patagia Viper | 1 | 0.99 |
| Kenku Artificer | 1 | 0.99 |
| Merrow Harbinger | 1 | 0.99 |
| 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 |
| Triton Fortune Hunter | 2 | 0.49 |
| Shoreline Looter | 2 | 0.49 |
| Whispering Wizard | 1 | 0.49 |
| Star Whale | 1 | 0.49 |
| Shadowstorm Vizier | 4 | 0.33 |
| Daring Sleuth // Bearer of Overwhelming Truths | 1 | 0.33 |
| Cryptic Serpent | 1 | 0.33 |
| Stormchaser Drake | 6 | 0.27 |
| Pteramander | 2 | 0.24 |
| Fear of Failed Tests | 1 | 0.24 |
| Diviner Spirit | 1 | 0.19 |
| Mutagen Connoisseur | 1 | 0.16 |
| Feywild Caretaker | 1 | 0.16 |
| Beamsplitter Mage | 6 | 0.14 |
| Emrakul's Messenger | 1 | 0.14 |
| Viral Drake | 1 | 0.12 |
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