Cheapest priced copy (Theros Beyond Death): $0.49 at Card Kingdom, near mint, their price list as of .
Mantle of the Wolf 
Enchantment — Aura · Rare · Theros Beyond Death · #327
Enchant creature
Enchanted creature gets +4/+4.
When this Aura is put into a graveyard from the battlefield, create two 2/2 green Wolf creature tokens.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.49 to $2.29 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Theros Beyond Death Promos | 178p | Rare | $2.29 | $0.79 |
| Theros Beyond Death Promos | 178s | Rare | — | $1.49 |
| Theros Beyond Death | 178 | Rare | $0.49 | $0.49 |
| Theros Beyond Death | 327 | Rare | $0.49 | $1.99 |
One ruling from Wizards of the Coast
- 24 January 2020If the creature Mantle of the Wolf would enchant is an illegal target by the time the Aura spell resolves, the entire spell doesn't resolve. It's put into your graveyard from the stack, not the battlefield, so its ability won't trigger.