Cheapest priced copy (Modern Masters 2015): $0.35 at Card Kingdom, near mint, their price list as of .
Hikari, Twilight Guardian 
Legendary Creature — Spirit · 4/4 · Rare · Champions of Kamigawa · #12
Flying
Whenever you cast a Spirit or Arcane spell, you may exile Hikari. If you do, return it to the battlefield under its owner's control at the beginning of the next end step.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.35 to $1.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Champions of Kamigawa | 12 | Rare | $0.49 | $1.49Out of stock |
| Modern Masters 2015 | 18 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 1 December 2004If you exile Hikari, it leaves the battlefield before the spell that triggered it resolves its ability, so it will be unaffected by that spell.
- 1 December 2004You may choose not to exile Hikari.