FOILCheapest priced copy (Commander Legends: Battle for Baldur's Gate): $0.49 at Card Kingdom, near mint, their price list as of .
Windshaper Planetar 
Creature — Angel · 4/4 · Rare · Battle for Baldur's Gate Promos · #50s
Flash
Flying
When this creature enters during the declare attackers step, for each attacking creature, you may reselect which player or permanent that creature is attacking. (It can't attack its controller or their permanents.)
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.49 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends: Battle for Baldur's Gate | 50 | Rare | $0.49 | $0.49 |
| Commander Legends: Battle for Baldur's Gate | 559 | Rare | $0.59 | $0.49 |
| Battle for Baldur's Gate Promos | 50s | Rare | — | $0.79 |
5 rulings from Wizards of the Coast
- 10 June 2022Reselecting which player or planeswalker a creature is attacking ignores all requirements, restrictions, and costs associated with attacking.
- 10 June 2022If you reselect which player or planeswalker an attacking creature is attacking, that creature is still considered to have attacked the player or planeswalker as declared, but it is now attacking the new player or planeswalker.
- 10 June 2022You may cast Windshaper Planetar outside of a declare attackers step. If Windshaper Planetar enters the battlefield outside of a declare attackers step, its ability simply doesn't trigger.
- 10 June 2022Reselecting which player or planeswalker a creature is attacking doesn't cause “whenever this creature attacks” abilities to trigger.
- 10 June 2022If an ability targets something controlled by the “defending player” of an attacking creature and the defending player for that creature changes before that ability resolves, the ability won't resolve because its target has become illegal.