Cheapest priced copy (Core Set 2020): $0.35 at Card Kingdom, near mint, their price list as of .
Vengeful Warchief 
Creature — Orc Warrior · 4/4 · Uncommon · Core Set 2020 · #121
Whenever you lose life for the first time each turn, put a +1/+1 counter on this creature. (Damage causes loss of life.)
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.49 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Core Set 2020 | 121 | Uncommon | $0.35 | $0.49 |
4 rulings from Wizards of the Coast
- 12 July 2019If Vengeful Warchief comes under your control after you’ve already lost life in a turn, its ability can’t trigger during that turn.
- 12 July 2019A player loses life if they pay life.
- 12 July 2019If you pay life to cast a spell or activate an ability, you don’t put a +1/+1 counter on Vengeful Warchief until after you’ve finished casting that spell or activating that ability. You put the counter on Vengeful Warchief before that spell or ability resolves.
- 12 July 2019You put only one +1/+1 counter on Vengeful Warchief, no matter how much life you lost.