Cheapest priced copy (Modern Horizons 3): $0.99 at Card Kingdom, near mint, their price list as of .
Breya, Etherium Shaper 
Legendary Artifact Creature — Human · 4/4 · Mythic · Modern Horizons 3 · #372
When Breya enters, create two 1/1 blue Thopter artifact creature tokens with flying.
{2}, Sacrifice two artifacts: Choose one —
• Breya deals 3 damage to target player or planeswalker.
• Target creature gets -4/-4 until end of turn.
• You gain 5 life.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
7 printings · $0.99 to $13.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Double Masters | 192 | Mythic | $1.29 | $6.99 |
| Commander 2016 | 29 | Mythic | — | $1.79 |
| Modern Horizons 3 | 289 | Mythic | $0.99 | $1.49 |
| Modern Horizons 3 | 372 | Mythic | $1.99 | $10.99 |
| Modern Horizons 3 | 486 | Mythic | — | — |
| Commander 2016 Oversized | 29 | Mythic | — | $1.29 |
| Secret Lair Drop | 454 | Mythic | — | $13.99 |
2 rulings from Wizards of the Coast
- 17 April 2017Breya, Etherium Shaper is banned as a commander in Duel Commander format, but it may be part of your deck.
- 7 August 2020Breya can be one of the two artifacts sacrificed to pay the cost of its last ability.