Cheapest priced copy (Double Masters): $0.35 at Card Kingdom, near mint, their price list as of .
Relic Runner 
Creature — Human Rogue · 2/1 · Common · Dominaria · #62
This creature can't be blocked if you've cast a historic spell this turn. (Artifacts, legendaries, and Sagas are historic.)
Legal inCommanderPioneerModernLegacyVintagePauper
Not legal inBrawlStandard
2 printings · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Double Masters | 63 | Common | $0.35 | $0.49 |
| Dominaria | 62 | Common | $0.35 | $0.49 |
One ruling from Wizards of the Coast
- 7 August 2020Once Relic Runner has been blocked, casting a historic spell won't remove the blocking creature from combat or cause Relic Runner to become unblocked.