Cheapest priced copy (Commander Legends: Battle for Baldur's Gate): $0.49 at Card Kingdom, near mint, their price list as of .
Dynaheir, Invoker Adept 
Legendary Creature — Human Wizard · 4/4 · Rare · Commander Legends: Battle for Baldur's Gate · #273
Haste
You may activate abilities of other creatures you control as though those creatures had haste.
{T}: When you next activate an ability that isn't a mana ability this turn by spending four or more mana to activate it, copy that ability. You may choose new targets for the copy.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
4 printings · $0.49 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends: Battle for Baldur's Gate | 273 | Rare | $0.49 | $0.49 |
| Commander Legends: Battle for Baldur's Gate | 421 | Rare | $0.49 | $0.49 |
| Commander Legends: Battle for Baldur's Gate | 532 | Rare | — | — |
| Battle for Baldur's Gate Promos | 273s | Rare | — | $0.99 |
2 rulings from Wizards of the Coast
- 10 June 2022Dynaheir, Invoker Adept doesn't actually grant haste to creatures you control, nor does it let you attack with them as though they had haste.
- 10 June 2022Dynaheir has received an update to its Oracle text. Specifically, the delayed triggered ability doesn't trigger if you activate a mana ability that costs four or more mana to activate.