---
name: "Opal Acrolith"
mana_cost: "{2}{W}"
cmc: 3
type_line: "Enchantment"
colors: ["W"]
color_identity: ["W"]
keywords: []
set: "USG"
set_name: "Urza's Saga"
collector_number: "22"
rarity: "uncommon"
artist: "Robh Ruppel"
oracle_id: "d08b8dd6-3a44-4e86-8ce8-2d0a014a9aa8"
canonical_url: "https://avascry.com/printing/opal-acrolith-usg"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "not_legal"
  pioneer: "not_legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "not_legal"
---

# Opal Acrolith
- **Mana Cost:** `{2}{W}` (CMC: 3)
- **Type:** Enchantment

## Oracle Text
Whenever an opponent casts a creature spell, if this permanent is an enchantment, it becomes a 2/4 Soldier creature.
{0}: This permanent becomes an enchantment.

## Top 4096-Dim Neural Synergies
1. [Opal Caryatid](/printing/opal-caryatid-usg.md) — Enchantment
2. [Opal Champion](/printing/opal-champion-ulg.md) — Enchantment
3. [Opal Gargoyle](/printing/opal-gargoyle-usg.md) — Enchantment
4. [Opal Titan](/printing/opal-titan-usg.md) — Enchantment
5. [Opal Guardian](/printing/opal-guardian-tsp.md) — Enchantment
6. [Opal Archangel](/printing/opal-archangel-usg.md) — Enchantment

## Printing Details
- **Set:** Urza's Saga (USG) #22
- **Rarity:** Uncommon
- **Artist:** Robh Ruppel
- **Total Printings:** 10 across all historical editions

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