Cheapest priced copy (Time Spiral): $1.49 at Card Kingdom, near mint, their price list as of .
Stronghold Overseer 
Creature — Demon · 5/5 · Rare · Time Spiral · #133
Flying
Shadow (This creature can block or be blocked by only creatures with shadow.)
{B}{B}: Creatures with shadow get +1/+0 until end of turn and creatures without shadow get -1/-0 until end of turn.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
1 printing · $1.49 to $4.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Time Spiral | 133 | Rare | $1.49 | $4.99 |
3 rulings from Wizards of the Coast
- 19 March 2021Multiple instances of shadow on the same creature are redundant.
- 19 March 2021If an attacking creature has multiple evasion abilities, such as shadow and flying, a creature can block it only if that creature satisfies all of the appropriate evasion abilities.
- 19 March 2021Once a creature has been blocked, that creature remains blocked and will deal and be dealt combat damage even if it gains or loses shadow or if the blocking creature gains or loses shadow.