Cheapest priced copy (War of the Spark): $0.35 at Card Kingdom, near mint, their price list as of .
Liliana's Triumph 
Instant · Special · Time Spiral Remastered · #327
Each opponent sacrifices a creature of their choice. If you control a Liliana planeswalker, each opponent also discards a card.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $0.35 to $5.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| War of the Spark Promos | 98 | Uncommon | — | $3.49 |
| Time Spiral Remastered | 327 | Special | $0.49 | $5.99Out of stock |
| War of the Spark | 98 | Uncommon | $0.35 | $1.49 |
4 rulings from Wizards of the Coast
- 3 May 2019Controlling more than one planeswalker of the appropriate type won't have any more of a benefit than just controlling one.
- 3 May 2019Whether you control an appropriate planeswalker is checked only as the spell resolves.
- 19 March 2021As Liliana's Triumph resolves, the opponent whose turn it is (or, if it's your turn, the next opponent in turn order) chooses a creature to sacrifice, then each other opponent in turn order does the same, knowing the choices made before them. Then all the chosen creatures are sacrificed at the same time. Then, if you control a Liliana planeswalker, in the same order, each opponent chooses a card in their hand without revealing it, and those cards are discarded at the same time.
- 19 March 2021You can cast Liliana's Triumph even if some or all of your opponents will be unable to sacrifice a creature. If you control a Liliana planeswalker, they'll still discard a card, even if they couldn't sacrifice a creature.