---
name: "The Seedcore"
mana_cost: "N/A"
cmc: 0
type_line: "Land — Sphere"
colors: []
color_identity: []
keywords: ["Corrupted"]
set: "PONE"
set_name: "Phyrexia: All Will Be One Promos"
collector_number: "259p"
rarity: "rare"
artist: "Kasia 'Kafis' Zielińska"
oracle_id: "249fdd3e-376c-4ec2-a612-4353e0e61ee2"
canonical_url: "https://avascry.com/printing/the-seedcore-pone"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "legal"
---

# The Seedcore
- **Mana Cost:** `N/A` (CMC: 0)
- **Type:** Land — Sphere
- **Keywords:** Corrupted

## Oracle Text
{T}: Add {C}.
{T}: Add one mana of any color. Spend this mana only to cast Phyrexian creature spells.
Corrupted — {T}: Target 1/1 creature gets +2/+1 until end of turn. Activate only if an opponent has three or more poison counters.

## Top 4096-Dim Neural Synergies
1. [Phyrexian Atlas](/printing/phyrexian-atlas-one.md) — Artifact
2. [Glistening Sphere](/printing/glistening-sphere-onc.md) — Artifact
3. [Phyrexia's Core](/printing/phyrexias-core-c14.md) — Land
4. [Mirrex](/printing/mirrex-one.md) — Land — Sphere
5. [Cavern of Souls](/printing/cavern-of-souls-lci.md) — Land
6. [Secluded Courtyard](/printing/secluded-courtyard-neo.md) — Land

## Printing Details
- **Set:** Phyrexia: All Will Be One Promos (PONE) #259p
- **Rarity:** Rare
- **Artist:** Kasia 'Kafis' Zielińska
- **Total Printings:** 15 across all historical editions

## Format Legalities
Commander: `legal` | Standard: `not_legal` | Modern: `legal` | Pioneer: `legal` | Legacy: `legal` | Vintage: `legal` | Pauper: `not_legal` | Penny: `legal`