Sporocyst
Creature — Tyranid
Ravenous (This creature enters with X +1/+1 counters on it. If X is 5 or more, draw a card when it enters.)
Defender
Spore Chimney — When this creature enters, search your library for up to X basic land cards, put them onto the battlefield tapped, then shuffle.
- CMC
- 1
- Mana cost
- Color identity
- G
- Rarity
- rare
- Set
- Warhammer 40,000 Commander
- Price
- —
- EDHREC rank
- #4598
Sporocyst generates a Spawn token whenever you cast a spell with X in its mana cost, turning every X-spell into a free mana accelerant the following turn. In Magus Lucea Kane decks, where X-spells are the entire game plan, it's not a fringe inclusion — it's a core piece.
Best Commanders
Commanders with the highest synergy
Magus Lucea Kane
Magus Lucea Kane copies X-spells by default, and Sporocyst triggers on each cast — so the engine compounds fast: cast, copy, float mana next turn, cast bigger. The 75% inclusion rate reflects that this is nearly a staple in the archetype.
The Swarmlord
The Swarmlord rewards you for accumulating Tyranid tokens, and Sporocyst contributes to that mass every time you cast an X-spell. The Spawn tokens themselves feed the swarm count that The Swarmlord converts into card draw.
Rosheen, Roaring Prophet
Rosheen, Roaring Prophet taps for four mana restricted to X-spells, and Sporocyst turns each of those X-spell casts into a future mana source — the two cards share the same resource loop of casting big and casting bigger.
Zimone, Infinite Analyst
Zimone, Infinite Analyst leans on high-value spell chains, and Sporocyst provides the incremental mana generation that lets those chains extend without hitting land drops. It's a role-player here rather than a centerpiece, but the 27% inclusion rate says it earns its slot.
Zaxara, the Exemplary
Zaxara, the Exemplary already makes a Hydra token for each X-spell, and Sporocyst stacks a Spawn token on top of that — double the token output from a single cast is straightforward value in a shell that was already looking for exactly this kind of redundancy.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | not legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
Sporocyst is a Commander card front to back — the payoff compounds over a long game with a commander that rewards X-spell density, and that context simply doesn't exist in shorter formats. It's legal in Legacy and Vintage but sees no meaningful play there; the power ceiling of those formats makes a slow token-generating creature irrelevant. Commander is where Sporocyst does its real work, specifically in X-spell decks where every cast snowballs the mana available for the next one. Oathbreaker is a reasonable home for the same reason, provided the planeswalker and signature spell both care about the X-spell package.
Key Combos
Combo lines featuring this card
Price Context
Current price
unknown tier
Pricing data for Sporocyst isn't currently available in our index, so check Scryfall or TCGPlayer for the live number. Given its narrow archetype fit and the density of X-spell commanders in the format, it tends to be an affordable pickup — but verify before buying.
Explore
Sources
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.