Steadfast Unicorn
Creature — Unicorn
: Creatures you control get +1/+1 and gain vigilance until end of turn. Activate only during your turn. (Attacking doesn't cause them to tap.)
- CMC
- 1
- Mana cost
- Color identity
- W
- Rarity
- common
- Set
- Foundations Jumpstart
- Price
- $0.33
- EDHREC rank
- #15893
Steadfast Unicorn keeps your creatures from being sacrificed against your will — a passive, always-on tax that punishes Dictate of Erebos chains and Grave Pact decks before they start. Thurid, Mare of Destiny lists run it at a 61% clip because it fits the unicorn tribal package and does real work against sacrifice-based board control.
Best Commanders
Commanders with the highest synergy
Thurid, Mare of Destiny
Thurid, Mare of Destiny wants every unicorn it can find, and Steadfast Unicorn pulls double duty as both a tribal body and a blanket protection effect that keeps the rest of the herd safe from forced sacrifice.
Emiel the Blessed
Emiel the Blessed is a unicorn itself, and Steadfast Unicorn's protection clause combines with Emiel's blink loop to make the board increasingly resistant to the sacrifice-based removal that would otherwise disrupt the engine.
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 | legal |
| oathbreaker | legal |
Steadfast Unicorn is legal in Commander, Legacy, Vintage, Pauper, and Oathbreaker, but its home is Commander — the format where Grave Pact, Dictate of Erebos, and Sheoldred, Whispering One show up regularly enough that a two-mana answer matters. In Pauper it's technically playable, but the format moves fast and a 2/2 vigilance body with a situational static ability rarely makes the cut. Legacy and Vintage don't care about it at all — those formats have better things to do at two mana, and sacrifice synergies aren't a core threat axis.
Key Combos
Combo lines featuring this card
Price Context
Current price
$0.33 bulk tier
At $0.33, Steadfast Unicorn is bulk — easy to pick up and easy to cut without regret. Bulk commons and uncommons at this price point don't hold or climb without a format breakthrough, and nothing on the horizon suggests that's coming.
Explore
Sources
Mentioned
- Thurid, Mare of Destiny
- Emiel the Blessed
Updated . Data from Scryfall, EDHREC, and Commander Spellbook.