Cheapest priced copy (Tarkir: Dragonstorm Promos): $0.49 at Card Kingdom, near mint, their price list as of .
Eshki Dragonclaw 
Legendary Creature — Human Warrior · 4/4 · Rare · Tarkir: Dragonstorm Promos · #182p
Vigilance, trample, ward {1}
At the beginning of combat on your turn, if you've cast both a creature spell and a noncreature spell this turn, draw a card and put two +1/+1 counters on Eshki Dragonclaw.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
4 printings · $0.49 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Tarkir: Dragonstorm Promos | 182p | Rare | $0.49 | $0.99 |
| Tarkir: Dragonstorm Promos | 182s | Rare | — | $2.99 |
| Tarkir: Dragonstorm | 182 | Rare | $0.49 | $0.49 |
| Tarkir: Dragonstorm | 356 | Rare | $0.49 | $1.99 |
One ruling from Wizards of the Coast
- 4 April 2025If you haven’t cast both a creature spell and a noncreature spell this turn by the time your beginning of combat step begins, Eshki’s last ability won’t trigger at all. You won’t be able to cast a creature or noncreature spell during your beginning of combat step in time to have the ability trigger.