Cheapest priced copy (Commander Legends: Battle for Baldur's Gate): $0.49 at Card Kingdom, near mint, their price list as of .
Mazzy, Truesword Paladin 
Legendary Creature — Halfling Knight · 3/4 · Rare · Commander Legends: Battle for Baldur's Gate · #283
Whenever an enchanted creature attacks one of your opponents, it gets +2/+0 and gains trample until end of turn.
Whenever an Aura you control is put into your graveyard from the battlefield, exile it. Until the end of your next turn, you may cast that card.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $0.49 to $0.69 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends: Battle for Baldur's Gate | 283 | Rare | $0.49 | $0.49 |
| Commander Legends: Battle for Baldur's Gate | 430 | Rare | $0.49 | $0.49 |
| Commander Legends: Battle for Baldur's Gate | 541 | Rare | — | — |
| Battle for Baldur's Gate Promos | 283s | Rare | — | $0.69 |
2 rulings from Wizards of the Coast
- 10 June 2022In some unusual cases, the Aura put into your graveyard isn't an Aura card. This may happen due to copy effects, for example. In these cases, you'll still exile the card and you may cast it.
- 10 June 2022You must still pay all costs and follow all timing rules when casting the card from exile.