Cheapest priced copy (Assassin's Creed): $0.69 at Card Kingdom, near mint, out of stock, their price list as of .
Merciless Harlequin 
Creature — Human Assassin · 2/1 · Common · Assassin's Creed · #287
Freerunning {1}{B} (You may cast this spell for its freerunning cost if you dealt combat damage to a player this turn with an Assassin or commander.)
When this creature enters, you draw a card and you lose 1 life.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
1 printing · $0.69 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Assassin's Creed | 287 | Common | $0.69Out of stock | — |
One ruling from Wizards of the Coast
- 5 July 2024Once an Assassin creature or commander you control deals combat damage to a player in a turn, you can cast spells for their freerunning costs for the rest of that turn. It doesn’t matter what happens to that Assassin or commander after that.