FOILCheapest priced copy (Aether Revolt): $4.49 at Card Kingdom, foil, near mint, their price list as of .
Ajani, Valiant Protector 
Legendary Planeswalker — Ajani · Mythic · Aether Revolt · #185
+2: Put two +1/+1 counters on up to one target creature.
+1: Reveal cards from the top of your library until you reveal a creature card. Put that card into your hand and the rest on the bottom of your library in a random order.
−11: Put X +1/+1 counters on target creature, where X is your life total. That creature gains trample until end of turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $4.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Aether Revolt | 185 | Mythic | — | $4.49 |
2 rulings from Wizards of the Coast
- 9 February 2017If you don’t have a creature card in your library while resolving Ajani’s second ability, you’ll reveal your library and then randomize it.
- 9 February 2017The value of X for Ajani’s third ability is determined only as it resolves. The number of +1/+1 counters on the creature won’t change later if your life total changes.