Cheapest priced copy (The Lost Caverns of Ixalan): $0.35 at Card Kingdom, near mint, their price list as of .
Might of the Ancestors 
Enchantment · Uncommon · The Lost Caverns of Ixalan · #23
At the beginning of combat on your turn, target creature you control gets +2/+0 and gains vigilance until end of turn.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Lost Caverns of Ixalan | 23 | Uncommon | $0.35 | $0.49 |