Cheapest priced copy (Tarkir: Dragonstorm): $2.79 at Card Kingdom, near mint, their price list as of .
Call the Spirit Dragons 
Enchantment · Mythic · Tarkir: Dragonstorm · #309
Dragons you control have indestructible.
At the beginning of your upkeep, for each color, put a +1/+1 counter on a Dragon you control of that color. If you put +1/+1 counters on five Dragons this way, you win the game.
Legal inCommanderBrawlStandardPioneerModernLegacyVintage
Not legal inPauper
4 printings · $2.79 to $8.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Tarkir: Dragonstorm Promos | 174p | Mythic | $2.99 | $3.99 |
| Tarkir: Dragonstorm Promos | 174s | Mythic | — | $6.49 |
| Tarkir: Dragonstorm | 174 | Mythic | $2.79 | $2.99 |
| Tarkir: Dragonstorm | 309 | Mythic | $4.49 | $8.99 |
3 rulings from Wizards of the Coast
- 4 April 2025The last ability will only cause you to win the game if you put a +1/+1 counter on each of five different Dragons with it.
- 4 April 2025Because damage remains marked on a creature until the damage is removed as the turn ends, nonlethal damage dealt to a Dragon you control may become lethal if Call the Spirit Dragons leaves the battlefield during that turn.
- 4 April 2025If you control a Dragon that is more than one color, you may put more than one +1/+1 counter on it with the last ability of Call the Spirit Dragons.