---
name: "Border Guardian"
mana_cost: "{4}"
cmc: 4
type_line: "Artifact Creature — Knight"
colors: []
color_identity: []
keywords: []
set: "UST"
set_name: "Unstable"
collector_number: "140"
rarity: "uncommon"
artist: "Chris Seaman"
oracle_id: "3d19561e-521f-417e-bd6b-963fc261f6d1"
canonical_url: "https://avascry.com/printing/border-guardian-ust"
legalities:
  commander: "not_legal"
  standard: "not_legal"
  modern: "not_legal"
  pioneer: "not_legal"
  legacy: "not_legal"
  vintage: "not_legal"
  pauper: "not_legal"
  penny: "not_legal"
---

# Border Guardian
- **Mana Cost:** `{4}` (CMC: 4)
- **Type:** Artifact Creature — Knight
- **Power/Toughness:** 1/1

## Oracle Text
Whenever you cast a silver-bordered spell, put a +1/+1 counter on this creature.
Whenever you cast a black-bordered spell, this creature can't be blocked this turn.
Whenever you cast a white-bordered spell, this creature gains double strike until end of turn.

## Top 4096-Dim Neural Synergies
1. [Knight of the Kitchen Sink](/printing/knight-of-the-kitchen-sink-ust.md) — Artifact Creature — Cyborg Knight
2. [Ineffable Blessing](/printing/ineffable-blessing-ulst.md) — Enchantment
3. [Border Guard](/printing/border-guard-s99.md) — Creature — Human Soldier
4. [Diamond Knight](/printing/diamond-knight-m20.md) — Artifact Creature — Knight
5. [Spara's Bodyguard](/printing/sparas-bodyguard-ysnc.md) — Creature — Rhino Warrior
6. [Sigiled Sentinel](/printing/sigiled-sentinel-mom.md) — Creature — Human Knight

## Printing Details
- **Set:** Unstable (UST) #140
- **Rarity:** Uncommon
- **Artist:** Chris Seaman

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