Cheapest priced copy (March of the Machine Commander): $0.49 at Card Kingdom, near mint, their price list as of .
Vivien's Talent 
Enchantment — Aura · Rare · March of the Machine Commander · #86
Enchant planeswalker
Enchanted planeswalker has "[+1]: Look at the top four cards of your library. You may reveal a creature or land card from among them and put it into your hand. Put the rest on the bottom of your library in a random order."
Whenever a nontoken creature you control enters, put a loyalty counter on enchanted planeswalker.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
2 printings · $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| March of the Machine Commander | 78 | Rare | $0.49 | $0.49 |
| March of the Machine Commander | 86 | Rare | $0.49 | $0.49 |
One ruling from Wizards of the Coast
- 14 April 2023You can activate one loyalty ability of each planeswalker you control during each of your turns, whether that ability is one it always has or the one it gains because of Vivien's Talent.