Cheapest priced copy (Outlaws of Thunder Junction): $0.49 at Card Kingdom, near mint, their price list as of .
Seraphic Steed 
Creature — Unicorn Mount · 2/2 · Rare · Outlaws of Thunder Junction · #364
First strike, lifelink
Whenever this creature attacks while saddled, create a 3/3 white Angel creature token with flying.
Saddle 4 (Tap any number of other creatures you control with total power 4 or more: This Mount becomes saddled until end of turn. Saddle only as a sorcery.)
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
4 printings · $0.49 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Outlaws of Thunder Junction | 232 | Rare | $0.49 | $0.49 |
| Outlaws of Thunder Junction | 364 | Rare | $0.69 | $0.99 |
| Outlaws of Thunder Junction Promos | 232p | Rare | $0.49 | $1.49 |
| Outlaws of Thunder Junction Promos | 232s | Rare | — | $1.49Out of stock |
6 rulings from Wizards of the Coast
- 12 April 2024If a permanent becomes a copy of a saddled Mount, the copy won’t be saddled.
- 12 April 2024“Saddle N” means “Tap any number of other untapped creatures you control with total power N or greater: This permanent becomes saddled until end of turn. Activate only as a sorcery.”
- 12 April 2024“Saddled” isn’t an ability that a creature has. It’s just something true about that creature. It won’t stop being saddled until the turn ends or it leaves the battlefield.
- 12 April 2024An ability that triggers when a creature “attacks while saddled” will trigger only if that creature was saddled when it was declared as an attacker.
- 12 April 2024Creatures with saddle can attack or block as normal even if they aren’t saddled.
- 12 April 2024You may activate a permanent’s saddle ability even if that permanent is already saddled.