Cheapest priced copy (Mercadian Masques): $0.49 at Card Kingdom, near mint, their price list as of .
Cho-Arrim Alchemist 
Creature — Human Spellshaper · 1/1 · Rare · Mercadian Masques · #8
{1}{W}{W}, {T}, Discard a card: The next time a source of your choice would deal damage to you this turn, prevent that damage. You gain life equal to the damage prevented this way.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.49 to $12.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Mercadian Masques | 8 | Rare | $0.49 | $12.99 |