Cheapest priced copy (Future Sight): $0.35 at Card Kingdom, near mint, their price list as of .
Rift Elemental 
Creature — Elemental · 1/1 · Common · Future Sight · #106
{1}{R}, Remove a time counter from a permanent you control or suspended card you own: This creature gets +2/+0 until end of turn.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
3 printings · $0.35 to $0.79 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Future Sight | 106 | Common | $0.35 | $0.79 |
| Modern Masters | 127 | Common | $0.35 | $0.49 |
| Time Spiral Remastered | 185 | Common | $0.35 | $0.49 |
2 rulings from Wizards of the Coast
- 1 May 2007The counter is removed as a cost, so it can't be responded to.
- 1 May 2007If an suspended card's last time counter is removed this way, the suspend triggered ability is put on the stack on top of the Rift Elemental ability. The same is true for the vanishing ability of a permanent that loses its last time counter.