Spell Proof Armor
Skill - Keith
Spell Proof Armor is a Skill - Keith. First printed in Speed Duel: Scars of Battle (2019).
- Type
- Skill Card
- Property
- Keith
- Banlist
- Unlimited in the TCG, OCG, and Master Duel
- TCG release
- 2019-08-01
- Printings
- 2
Card text
[Activate this Skill during your Main Phase.] All Machine monsters you control are unaffected by your opponent's Spell effects. You can Normal Summon Machine Normal Monsters with 1 less Tribute. If a non-Machine monster is in your GY, flip this Skill over. This Skill can only be used once per Duel.
Approximate value
≈$0.50
YGOPRODeck recorded a lowest available USD card-level price hint of ~$0.50 on Sep 25, 2026 (historical, not a printing-specific quote). It varies with printing, condition, edition, rarity, and grading. Check current listings before buying or selling.
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Printings & rarities
| Set | Set code | Rarity | Release | Price* |
|---|---|---|---|---|
| Speed Duel: Scars of Battle | SBSC-ENS02 | Super Rare | 2019-08-01 | $7.22 |
| Speed Duel Tournament Pack 4 | STP4-ENS03 | Common | 2022-09-29 | $0.50 |
*Approximate, from recent marketplace listings, not market values.
Price hint history
Dated YGOPRODeck snapshots. These hints are not sales or market values.
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