Cheapest priced copy (Phyrexia: All Will Be One): $0.35 at Card Kingdom, near mint, their price list as of .
Atraxa's Skitterfang 
Artifact Creature — Phyrexian Insect · 2/2 · Uncommon · Phyrexia: All Will Be One · #223
This creature enters with three oil counters on it.
At the beginning of combat on your turn, you may remove an oil counter from this creature. When you do, target creature you control gains your choice of flying, vigilance, deathtouch, or lifelink until end of turn.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Phyrexia: All Will Be One | 223 | Uncommon | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 4 February 2023You don't choose a target for Atraxa's Skitterfang's last ability at the time it triggers. Rather, a second "reflexive" ability triggers when you remove an oil counter this way. You choose a target for that ability as it goes on the stack. Each player may respond to this triggered ability as normal.
- 4 February 2023You choose which ability the target creature gets as the reflexive ability resolves. Players may not wait to see what ability you choose before deciding whether to respond to it.