---
name: "Conversion"
mana_cost: "{2}{W}{W}"
cmc: 4
type_line: "Enchantment"
colors: []
color_identity: ["W"]
keywords: []
set: "ME4"
set_name: "Masters Edition IV"
collector_number: "9"
rarity: "rare"
artist: "Jesper Myrfors"
oracle_id: "a24e05fb-dffb-4400-b4ca-22fdde45e7a7"
canonical_url: "https://avascry.com/printing/conversion-me4"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "not_legal"
  pioneer: "not_legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "not_legal"
---

# Conversion
- **Mana Cost:** `{2}{W}{W}` (CMC: 4)
- **Type:** Enchantment

## Oracle Text
At the beginning of your upkeep, sacrifice this enchantment unless you pay {W}{W}.
All Mountains are Plains.

## Top 4096-Dim Neural Synergies
1. [Glaciers](/printing/glaciers-ice.md) — Enchantment
2. [Sivvi's Ruse](/printing/sivvis-ruse-nem.md) — Instant
3. [Celestial Dawn](/printing/celestial-dawn-tsb.md) — Enchantment
4. [Overlaid Terrain](/printing/overlaid-terrain-nem.md) — Enchantment
5. [Nature's Wrath](/printing/natures-wrath-me2.md) — Enchantment
6. [Arcum's Weathervane](/printing/arcums-weathervane-ice.md) — Artifact

## Printing Details
- **Set:** Masters Edition IV (ME4) #9
- **Rarity:** Rare
- **Artist:** Jesper Myrfors

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

## Official Rulings
- *(2004-10-04)* The Conversion effect is a continuous effect. There is no chance to tap a just-played mountain for red mana before it becomes a plains.
- *(2006-10-15)* Will not add or remove the supertype snow to or from a land.