Cheapest priced copy (Commander 2021): $0.79 at Card Kingdom, near mint, their price list as of .
Tivash, Gloom Summoner 
Legendary Creature — Human Warlock · 4/4 · Rare · Jumpstart 2022 · #476
Lifelink
At the beginning of your end step, if you gained life this turn, you may pay X life, where X is the amount of life you gained this turn. If you do, create an X/X black Demon creature token with flying.
Legal inCommanderLegacyVintage
Not legal inBrawlStandardPioneerModernPauper
3 printings · $0.79 to $1.29 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Commander 2021 | 45 | Rare | $0.79 | — |
| Commander 2021 | 372 | Rare | $1.29 | — |
| Jumpstart 2022 | 476 | Rare | $0.79 | — |
3 rulings from Wizards of the Coast
- 16 April 2021Tivash’s ability counts the total amount of life gained without considering any life you lost during that turn. For example, if you lost 3 life and gained 4 life earlier in the turn, you may pay 4 life to create a 4/4 Demon.
- 16 April 2021You can’t pay less life than the amount of life you gained to create a smaller but less harmful Demon.
- 16 April 2021You need to gain life before the end step begins for the last ability to trigger.