Startling Development 
Instant
Appears in 167 of 26,636 decks (0.6%).
Appears with these commanders:
| Commander | Decks ↓ | Synergy |
|---|---|---|
| Daring Sleuth // Bearer of Overwhelming Truths | 1 | 0.24 |
| Cryptic Serpent | 1 | 0.24 |
| Fear of Failed Tests | 1 | 0.19 |
| Diviner Spirit | 1 | 0.16 |
| Mutagen Connoisseur | 1 | 0.16 |
| Feywild Caretaker | 1 | 0.16 |
| Tomebound Lich | 1 | 0.08 |
| Messenger Falcons | 1 | 0.06 |
| Slinn Voda, the Rising Deep | 1 | 0.04 |
| Reef Worm | 1 | 0.04 |
| Worldheart Phoenix | 1 | 0.03 |
| Najal, the Storm Runner | 1 | 0.02 |
| Ambassador Blorpityblorpboop | 1 | 0.02 |
| Psychatog | 1 | 0.01 |
| Sedraxis Specter | 1 | 0.01 |
| Trygon Prime | 1 | 0.01 |
| Nightveil Predator | 1 | 0.01 |
| Stormcatch Mentor | 1 | 0.01 |
| Risen Reef | 1 | 0.0 |
| Aegar, the Freezing Flame | 1 | 0.0 |
| Ruin Crab | 1 | 0.0 |
| Adeliz, the Cinder Wind | 1 | 0.0 |
| Lagrella, the Magpie | 1 | 0.0 |
| Sphinx of the Guildpact | 1 | 0.0 |
| Kangee, Sky Warden | 1 | 0.0 |
| Melek, Izzet Paragon | 1 | 0.0 |
| Tatyova, Benthic Druid | 1 | -0.01 |
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