Cheapest priced copy (Kaldheim): $0.35 at Card Kingdom, near mint, their price list as of .
Jaspera Sentinel 
Creature — Elf Rogue · 1/2 · Common · Kaldheim · #178
Reach
{T}, Tap an untapped creature you control: Add one mana of any color.
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
4 printings · $0.35 to $2.29 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Kaldheim | 178 | Common | $0.35 | $0.49 |
| The List | KHM-178 | Common | $0.35 | — |
| Starter Commander Decks | 194 | Common | $0.35 | — |
| Secret Lair Drop | 770 | Rare | — | $2.29 |
One ruling from Wizards of the Coast
- 5 February 2021You can tap any untapped creature you control, including one you haven’t controlled continuously since the beginning of your most recent turn, to pay the cost of Jaspera Sentinel’s activated ability. You must have controlled Jaspera Sentinel continuously since the beginning of your most recent turn, however.