Cheapest priced copy (Time Spiral): $0.35 at Card Kingdom, near mint, their price list as of .
Phantom Wurm 
Creature — Wurm Spirit · 2/0 · Uncommon · Time Spiral Remastered · #224
This creature enters with four +1/+1 counters on it.
If damage would be dealt to this creature, prevent that damage. Remove a +1/+1 counter from this creature.
Legal inCommanderModernLegacyVintage
Not legal inBrawlStandardPioneerPauper
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Time Spiral | 211 | Uncommon | $0.35 | $0.49 |
| Time Spiral Remastered | 224 | Uncommon | $0.35 | $0.49 |
3 rulings from Wizards of the Coast
- 8 December 2022If this creature would be dealt damage from multiple sources at the same time (say, because it's blocked by multiple creatures), all of the damage is prevented and only one +1/+1 counter is removed.
- 8 December 2022If this creature has no +1/+1 counters on it (but is still on the battlefield because something else is raising its toughness), damage that would be dealt to it is still prevented.
- 8 December 2022If damage that would be dealt to this creature can't be prevented, the damage is dealt and a +1/+1 counter is removed from this creature.