Cheapest priced copy (Mercadian Masques): $0.49 at Card Kingdom, near mint, their price list as of .
Erithizon 
Creature — Beast · 4/4 · Rare · Mercadian Masques · #244
Whenever this creature attacks, put a +1/+1 counter on target creature of defending player's choice.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
1 printing · $0.49 to $6.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Mercadian Masques | 244 | Rare | $0.49 | $6.99 |
One ruling from Wizards of the Coast
- 4 October 2004Erithizon’s controller controls the triggered ability, but their opponent chooses the target.