Cheapest priced copy (Commander 2019): $0.99 at Card Kingdom, near mint, their price list as of .
Vraska the Unseen 
Legendary Planeswalker — Vraska · Mythic · Commander 2019 · #207
+1: Until your next turn, whenever a creature deals combat damage to Vraska, destroy that creature.
−3: Destroy target nonland permanent.
−7: Create three 1/1 black Assassin creature tokens with "Whenever this token deals combat damage to a player, that player loses the game."
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $0.99 to $4.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2019 | 207 | Mythic | $0.99 | — |
| Duel Decks: Jace vs. Vraska | 42 | Mythic | — | $1.29 |
| Return to Ravnica | 208 | Mythic | $1.29 | $4.49Out of stock |
2 rulings from Wizards of the Coast
- 1 October 2012If an effect creates a copy of one of the Assassin creature tokens, the copy will also have the triggered ability.
- 1 October 2012Each Assassin token's triggered ability will trigger whenever it deals combat damage to any player, including you.