Flowstone Armor
Artifact
You may choose not to untap this artifact during your untap step.
, 
: Target creature gets +1/-1 for as long as this artifact remains tapped.
- CMC
- 3
- Mana cost
- Color identity
- C
- Rarity
- uncommon
- Set
- Nemesis
- Price
- $0.15
- EDHREC rank
- #30736
Flowstone Armor turns any creature into a configurable pump outlet every turn — pay one mana, redistribute +1/+0 or -0/-1 as needed, repeated as many times as you can afford. The cost is real: it eats a mana sink that competes with everything else you want to do, and it does nothing the turn you play it.
Format Analysis
Where it lives, where it can’t
| Format | Verdict |
|---|---|
| commander | legal |
| legacy | legal |
| modern | not legal |
| pioneer | not legal |
| standard | not legal |
| vintage | legal |
| pauper | not legal |
| oathbreaker | legal |
In Commander, Flowstone Armor is a fringe inclusion at best — the format's high-power density makes a slow, mana-hungry equipment feel undersized next to cards that generate immediate card advantage or close games. Legacy and Vintage are theoretically legal, but neither format has ever wanted what Flowstone Armor offers; the effect is too incremental and too mana-intensive to compete. Oathbreaker shares Commander's structural demands and the same verdict applies. This is a card that lives almost exclusively in precon-level or theme-driven Commander builds where the payoff for repeated power adjustments — Toughness-matters, P/T-matters voltron, or similar — actually lines up.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.15 bulk tier
At $0.15, Flowstone Armor is deep bulk — you're paying for cardboard, not demand. That price is stable by inertia rather than any upward pressure, so don't expect it to move.
Explore
Sources
Mentioned
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.