Cheapest priced copy (Commander Legends: Battle for Baldur's Gate): $8.99 at Card Kingdom, near mint, their price list as of .
Tasha, the Witch Queen 
Legendary Planeswalker — Tasha · Mythic · Commander Legends: Battle for Baldur's Gate · #294
Whenever you cast a spell you don't own, create a 3/3 black Demon creature token.
+1: Draw a card. For each opponent, exile up to one target instant or sorcery card from that player's graveyard and put a page counter on it.
−3: You may cast a spell from among cards in exile with page counters on them without paying its mana cost.
Tasha, the Witch Queen can be your commander.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $8.99 to $23.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends: Battle for Baldur's Gate | 294 | Mythic | $8.99 | $10.99 |
| Commander Legends: Battle for Baldur's Gate | 364 | Mythic | $9.49 | $15.99 |
| Battle for Baldur's Gate Promos | 294s | Mythic | — | $23.99 |
One ruling from Wizards of the Coast
- 10 June 2022You may cast a spell from among the exiled cards only as Tasha's last loyalty ability resolves. You may not wait and cast a spell from among them at a later time.