Cheapest priced copy (Commander Legends): $16.99 at Card Kingdom, near mint, their price list as of .
Akroma's Will 
Instant · Rare · Commander Legends · #3
Choose one. If you control a commander as you cast this spell, you may choose both instead.
• Creatures you control gain flying, vigilance, and double strike until end of turn.
• Creatures you control gain lifelink, indestructible, and protection from each color until end of turn.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
9 printings · $16.99 to $199.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander Legends | 3 | Rare | $16.99 | $22.99 |
| Commander Legends | 615 | Rare | $22.99 | $49.99 |
| Final Fantasy: Through the Ages (Blessing of the Oracle) | 21 | Mythic | $32.99 | $199.99Out of stock |
| The Lost Caverns of Ixalan Commander | 125 | Rare | $17.99 | — |
| Modern Horizons 3 Commander | 165 | Rare | $17.99 | $24.99 |
| The List | CMR-3 | Rare | — | — |
| Secrets of Strixhaven Mystical Archive | 1 | Mythic | $24.99 | $29.99 |
| Secrets of Strixhaven Mystical Archive | 66 | Mythic | $21.99 | — |
| Secrets of Strixhaven Mystical Archive | 131 | Mythic | — | $109.99Out of stock |
6 rulings from Wizards of the Coast
- 10 November 2020Once you've announced that you're casting a spell, players can't take any actions until you've finished doing so. Notably, opponents can't try to remove your commander to change how many modes you may choose.
- 10 November 2020Even though the card is named after a specific character, controlling any commander will satisfy its condition.
- 10 November 2020There's no extra bonus if you control more than one commander.
- 10 November 2020Once you've chosen both modes for the spell, it doesn't matter whether you continue to control a commander. This is true even if you somehow no longer control a commander as you finish casting the spell.
- 10 November 2020The commander you control doesn't have to be your commander.
- 17 November 2025"Protection from each color" is shorthand for protection from white, from blue, from black, from red, and from green. Colorless is not a color.