Conundrum Sphinx
Creature — Sphinx
Flying
Whenever this creature attacks, each player chooses a card name. Then each player reveals the top card of their library. If the card a player revealed has the name they chose, that player puts it into their hand. If it doesn't, that player puts it on the bottom of their library.
- CMC
- 4
- Mana cost
- Color identity
- U
- Rarity
- rare
- Set
- Commander 2011
- Price
- $0.18
- EDHREC rank
- #17132
Conundrum Sphinx is a 4/4 flier that draws you a card every turn — conditional on guessing your top card correctly — but a 4UU flying beatstick with upside rarely gets cut on rate alone. The Celestial Toymaker decks are its natural home, where controlling the top of your library turns the guessing game into a free draw engine.
Best Commanders
Commanders with the highest synergy
The Celestial Toymaker
The Celestial Toymaker lets you manipulate what's sitting on top of your library, which converts Conundrum Sphinx's trigger from a coin flip into a reliable draw — nearly 17% of those decks run it for exactly that reason.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Conundrum Sphinx sees virtually no play in Legacy, Modern, or Vintage — 4UU for a conditional draw trigger is too slow and too fragile against the threats those formats prioritize. Commander is where it actually lives: in decks that can set up the top of the library through scry, topdeck manipulation, or commanders like The Celestial Toymaker, Conundrum Sphinx becomes a repeatable advantage engine on a relevant body. Outside that niche, it's bench material.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.18 bulk tier
At $0.18, Conundrum Sphinx is deep bulk — easy to acquire, zero financial risk. Don't expect that to change; it's a casual card with a narrow home and no competitive demand pulling the price up.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.