Cheapest priced copy (Foundations Jumpstart): $0.35 at Card Kingdom, near mint, their price list as of .
Wolfrider's Saddle 
Artifact — Equipment · Uncommon · Foundations Jumpstart · #740
When this Equipment enters, create a 2/2 green Wolf creature token, then attach this Equipment to it.
Equipped creature gets +1/+1 and can't be blocked by more than one creature.
Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
2 printings · $0.35 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Foundations Jumpstart | 740 | Uncommon | $0.35 | — |
| Core Set 2020 | 204 | Uncommon | $0.35 | $0.79 |
3 rulings from Wizards of the Coast
- 12 July 2019No player may take any actions between the time you create the Wolf token and the time Wolfrider's Saddle becomes attached to it.
- 12 July 2019If the equipped creature has menace, it can't be blocked at all.
- 12 July 2019The Wolf token that you create enters the battlefield as a 2/2 creature. Any abilities that trigger when a creature with a certain power enters the battlefield will see the token enter as a 2/2 creature before Wolfrider's Saddle becomes attached.