Cheapest priced copy (Mystery Booster 2): $2.49 at Card Kingdom, near mint, their price list as of .
Iona, Shield of Emeria 
Legendary Creature — Angel · 7/7 · Mythic · Zendikar · #13
Flying
As Iona enters, choose a color.
Your opponents can't cast spells of the chosen color.
Legal inModernLegacyVintage
Banned inCommanderBrawl
Not legal inStandardPioneerPauper
4 printings · $2.49 to $94.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Mystery Booster 2 | 12 | Mythic | $2.49 | — |
| Modern Masters 2015 | 20 | Mythic | $8.49 | $34.99 |
| From the Vault: Angels | 9 | Mythic | — | $15.99 |
| Zendikar | 13 | Mythic | $8.99 | $94.99 |
2 rulings from Wizards of the Coast
- 1 October 2009Iona's third ability includes permanent spells (artifacts, creatures, enchantments, and planeswalkers), not just instant and sorcery spells. It does not include lands or abilities (such as cycling or unearth).
- 1 October 2009Once the color is chosen, it's too late for opponents to respond by casting spells of that color. Iona is not yet in the battlefield at the time the color is chosen, so, for example, there's no way for an opponent to destroy it by casting Doom Blade if the chosen color is black.