Cheapest priced copy (Theros Beyond Death): $0.49 at Card Kingdom, near mint, their price list as of .
Gallia of the Endless Dance 
Legendary Creature — Satyr · 2/2 · Rare · Theros Beyond Death · #217
Haste
Other Satyrs you control get +1/+1 and have haste.
Whenever you attack with three or more creatures, you may discard a card at random. If you do, draw two cards.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
4 printings · $0.49 to $3.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Theros Beyond Death Promos | 217p | Rare | $0.59 | $0.79 |
| Theros Beyond Death Promos | 217s | Rare | — | $1.29Out of stock |
| Theros Beyond Death | 217 | Rare | $0.49 | $0.49 |
| Theros Beyond Death | 338 | Rare | $0.99 | $3.99 |
4 rulings from Wizards of the Coast
- 24 January 2020You can’t choose to discard a card at random if you have no cards in hand. If you have one card in hand, you may discard it at random, even though that’s not very random.
- 24 January 2020Once three or more creatures you control have attacked, you’ll be given the option to discard a card at random, even if some or all of those attackers leave the battlefield before Gallia’s triggered ability resolves.
- 24 January 2020While resolving Gallia’s last ability, you can’t discard multiple cards to draw more than two cards.
- 24 January 2020If Gallia leaves the battlefield, Satyrs you control lose haste. If they haven’t been under your control since the turn began and don’t otherwise have haste, they can’t attack this turn. If they’ve already attacked, they remain attacking creatures.