Blood Researcher 
Creature — Vampire Druid
Appears in 695 of 6,564 decks (10.6%).
Appears with these commanders:
| Commander | Decks | Synergy ↓ |
|---|---|---|
| Darkheart Sliver | 1 | 0.89 |
| Herbology Instructor // Malady Invoker | 1 | 0.89 |
| Dina, Soul Steeper | 424 | 0.63 |
| Deathless Knight | 12 | 0.53 |
| Savvy Hunter | 24 | 0.31 |
| Greta, Sweettooth Scourge | 55 | 0.27 |
| Leyline Prowler | 1 | 0.23 |
| Vinereap Mentor | 1 | 0.23 |
| Witherbloom Apprentice | 76 | 0.17 |
| Skirmish Rhino | 12 | 0.13 |
| Obelisk Spider | 10 | 0.06 |
| Moss-Pit Skeleton | 1 | 0.06 |
| Erinis, Gloom Stalker + Agent of the Iron Throne | 1 | 0.06 |
| Erinis, Gloom Stalker + Agent of the Shadow Thieves | 2 | 0.05 |
| Skyfisher Spider | 1 | -0.02 |
| Slimefoot, the Stowaway | 33 | -0.03 |
| Shessra, Death's Whisper | 2 | -0.04 |
| Armament Corps | 3 | -0.05 |
| Cursed Wombat | 1 | -0.05 |
| Ravenous Squirrel | 10 | -0.06 |
| Viconia, Drow Apostate + Cloakwood Hermit | 1 | -0.06 |
| Uurg, Spawn of Turg | 5 | -0.07 |
| Falthis, Shadowcat Familiar + Anara, Wolvid Familiar | 1 | -0.07 |
| Winding Constrictor | 2 | -0.08 |
| Wilson, Refined Grizzly + Agent of the Shadow Thieves | 3 | -0.09 |
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