---
name: "Trial // Error"
mana_cost: "{W}{U} // {U}{B}"
cmc: 4
type_line: "Instant // Instant"
colors: ["B", "U", "W"]
color_identity: ["B", "U", "W"]
keywords: []
set: "DIS"
set_name: "Dissension"
collector_number: "158"
rarity: "uncommon"
artist: "Ron Spears & Wayne Reynolds"
oracle_id: "a40bebe3-6f00-4754-9f70-351055e3b524"
canonical_url: "https://avascry.com/printing/trial-error-dis"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "not_legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "legal"
---

# Trial // Error
- **Mana Cost:** `{W}{U} // {U}{B}` (CMC: 4)
- **Type:** Instant // Instant

## Oracle Text
(No Oracle text)

## Top 4096-Dim Neural Synergies
1. [Trial and Error](/printing/trial-and-error-cmb1.md) — Elemental Instant — Fire
2. [Odds // Ends](/printing/odds-ends-dis.md) — Instant // Instant
3. [Bound // Determined](/printing/bound-determined-dis.md) — Instant // Instant
4. [Spite // Malice](/printing/spite-malice-inv.md) — Instant // Instant
5. [Order // Chaos](/printing/order-chaos-apc.md) — Instant // Instant
6. [There // They're // Their](/printing/there-theyre-their-mb2.md) — Instant — Lesson // Instant — Lesson // Instant — Lesson

## Printing Details
- **Set:** Dissension (DIS) #158
- **Rarity:** Uncommon
- **Artist:** Ron Spears & Wayne Reynolds
- **Total Printings:** 17 across all historical editions

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