Transplant Theorist
Artifact Creature — Phyrexian Artificer
Whenever this creature or another artifact you control enters, you may draw a card. If you do, discard a card.: Put target card from your graveyard on the bottom of your library.
- CMC
- 4
- Mana cost
- Color identity
- U
- Rarity
- uncommon
- Set
- Phyrexia: All Will Be One
- Price
- $0.27
- EDHREC rank
- #9424
Transplant Theorist puts a scry-and-draw engine directly on the battlefield — every creature dying near it filters your deck and replaces itself. River Song runs it in over half of all builds because the top-of-library manipulation feeds directly into her play-from-exile-in-reverse-order game plan.
Best Commanders
Commanders with the highest synergy

River Song
River Song cares deeply about the order cards leave the top of your library, and Transplant Theorist turns every death trigger into a scry that sets up her next exploit — it's not incidental value, it's infrastructure.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Transplant Theorist is a Commander card through and through — its death-trigger payoff compounds over a long game with multiple opponents, creatures dying constantly, and commanders that reward library manipulation. In competitive 60-card formats like Modern or Pioneer, a three-mana 2/3 that only triggers on death competes against far more efficient draw engines and rarely earns a slot. Legacy and Vintage have the same problem at an even steeper power bar. Transplant Theorist is legal in all of those formats but belongs in exactly one: Commander.
Key Combos
Combo lines featuring this card



River SongTransplant TheoristTime Warp
Infinite turns; Skip your draw steps; Lock
View on Commander Spellbook ↗


River SongTransplant TheoristTemporal Manipulation
Infinite turns; Skip your draw steps; Lock
View on Commander Spellbook ↗


River SongTransplant TheoristCapture of Jingzhou
Infinite turns; Skip your draw steps; Lock
View on Commander Spellbook ↗



Mary Read and Anne BonnyGilded Assault CartXornTransplant Theorist
Infinite card draw; Infinite self-discard triggers; Infinite draw triggers; Infinite looting; Near-infinite tapped Treasure tokens
View on Commander Spellbook ↗


River SongTransplant TheoristWalk the Aeons
Infinite turns; Skip your draw steps; Lock
View on Commander Spellbook ↗Price Context
Current price
$0.27 bulk tier
At $0.27, Transplant Theorist is firmly bulk — you're picking it out of a commons box, not budgeting for it. Bulk rares with narrow Commander applications tend to stay at this floor, so there's no price pressure to act fast or slow.
Explore
Sources
Mentioned
- River Song
- Time Warp
- Temporal Manipulation
- Capture of Jingzhou
- Mary Read and Anne Bonny
- Gilded Assault Cart
- Xorn
- Walk the Aeons
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.