Cheapest priced copy (Secrets of Strixhaven Promos): $1.99 at Card Kingdom, near mint, out of stock, their price list as of .
Moseo, Vein's New Dean 
Legendary Creature — Bird Skeleton Warlock · 2/1 · Rare · Secrets of Strixhaven Promos · #91p
Flying
When Moseo enters, create a 1/1 black and green Pest creature token with "Whenever this token attacks, you gain 1 life."
Infusion — At the beginning of your end step, if you gained life this turn, return up to one target creature card with mana value X or less from your graveyard to the battlefield, where X is the amount of life you gained this turn.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
3 printings · $1.49 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Secrets of Strixhaven Promos | 91p | Rare | $1.99Out of stock | $2.49 |
| Secrets of Strixhaven | 91 | Rare | $2.29 | $1.49 |
| Secrets of Strixhaven | 326 | Rare | $2.99 | $2.99 |
2 rulings from Wizards of the Coast
- 20 March 2026If a card in a graveyard has {X} in its mana cost, X is 0 for the purpose of determining its mana value.
- 20 March 2026Moseo's last ability will check as your end step starts to see if you gained life this turn. If you didn't, the ability won't trigger at all. It's not possible to gain life during your end step in time to have the ability trigger.