Cheapest priced copy (The Lost Caverns of Ixalan): $0.49 at Card Kingdom, near mint, their price list as of .
Warden of the Inner Sky 
Creature — Human Soldier · 1/2 · Rare · The Lost Caverns of Ixalan · #43
As long as this creature has three or more counters on it, it has flying and vigilance.
Tap three untapped artifacts and/or creatures you control: Put a +1/+1 counter on this creature. Scry 1. Activate only as a sorcery.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
4 printings · $0.49 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| The Lost Caverns of Ixalan | 43 | Rare | $0.49 | $0.49 |
| The Lost Caverns of Ixalan | 359 | Rare | $0.49 | $0.99 |
| The Lost Caverns of Ixalan Promos | 43p | Rare | $1.49Out of stock | $1.49 |
| The Lost Caverns of Ixalan Promos | 43s | Rare | — | $1.29 |
One ruling from Wizards of the Coast
- 10 November 2023You can tap any three untapped artifacts and/or creatures you control, including Warden of the Inner Sky itself and other creatures you haven't controlled continuously since the beginning of your most recent turn, to pay the cost of Warden of the Inner Sky's activated ability.