---
name: "Siege Modification"
mana_cost: "{1}{R}{R}"
cmc: 3
type_line: "Enchantment — Aura"
colors: ["R"]
color_identity: ["R"]
keywords: ["Enchant"]
set: "AER"
set_name: "Aether Revolt"
collector_number: "99"
rarity: "uncommon"
artist: "Sung Choi"
oracle_id: "ac6cf9a7-732d-4ff0-9e88-aae97a2ff169"
canonical_url: "https://avascry.com/printing/siege-modification-aer"
legalities:
  commander: "legal"
  standard: "not_legal"
  modern: "legal"
  pioneer: "legal"
  legacy: "legal"
  vintage: "legal"
  pauper: "not_legal"
  penny: "not_legal"
---

# Siege Modification
- **Mana Cost:** `{1}{R}{R}` (CMC: 3)
- **Type:** Enchantment — Aura
- **Keywords:** Enchant

## Oracle Text
Enchant creature or Vehicle
As long as enchanted permanent is a Vehicle, it's a creature in addition to its other types.
Enchanted creature gets +3/+0 and has first strike.

> *領事への突撃に最適。*

## Top 4096-Dim Neural Synergies
1. [Aerial Modification](/printing/aerial-modification-j22.md) — Enchantment — Aura
2. [Siegecraft](/printing/siegecraft-plst.md) — Enchantment — Aura
3. [Swift Reconfiguration](/printing/swift-reconfiguration-nec.md) — Enchantment — Aura
4. [Caught in the Brights](/printing/caught-in-the-brights-aer.md) — Enchantment — Aura
5. [Start Your Engines](/printing/start-your-engines-kld.md) — Sorcery
6. [Lightwheel Enhancements](/printing/lightwheel-enhancements-dft.md) — Enchantment — Aura

## Printing Details
- **Set:** Aether Revolt (AER) #99
- **Rarity:** Uncommon
- **Artist:** Sung Choi
- **Total Printings:** 13 across all historical editions

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