Cheapest priced copy (Commander Masters): $0.99 at Card Kingdom, near mint, their price list as of .
Wakening Sun's Avatar 
Creature — Dinosaur Avatar · 7/7 · Mythic · The Lost Caverns of Ixalan Commander · #139
When this creature enters, if you cast it from your hand, destroy all non-Dinosaur creatures.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
5 printings · $0.99 to $8.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Masters | 68 | Rare | $0.99 | $0.99Out of stock |
| Commander Masters | 476 | Rare | — | — |
| The Lost Caverns of Ixalan Commander | 139 | Mythic | $0.99 | — |
| Ixalan Promos | 44s | Mythic | — | $8.49 |
| Ixalan | 44 | Mythic | $1.29 | $2.99 |
2 rulings from Wizards of the Coast
- 29 September 2017If you cast a creature spell that enters the battlefield as a copy of Wakening Sun's Avatar, such as Clone, the enters-the-battlefield ability will trigger.
- 29 September 2017If you put Wakening Sun's Avatar onto the battlefield from your hand without casting it, its ability won't trigger.