Cheapest priced copy (Masters 25): $0.35 at Card Kingdom, near mint, their price list as of .
Soulbright Flamekin 
Creature — Elemental Shaman · 2/1 · Common · Lorwyn · #190
{2}: Target creature gains trample until end of turn. If this is the third time this ability has resolved this turn, you may add {R}{R}{R}{R}{R}{R}{R}{R}.
Legal inCommanderModernLegacyVintagePauper
Not legal inBrawlStandardPioneer
5 printings · $0.35 to $2.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Masters 25 | 151 | Common | $0.35 | $0.49 |
| Duel Decks: Jace vs. Chandra | 37 | Common | $0.39 | — |
| Duel Decks Anthology: Jace vs. Chandra | 37 | Common | $0.35 | — |
| Lorwyn | 190 | Common | $0.35 | $2.99Out of stock |
| Modern Masters 2015 | 126 | Common | $0.35 | $0.49 |
3 rulings from Wizards of the Coast
- 16 March 2018Soulbright Flamekin's ability uses the stack and can be responded to. Because it has a target, it's not a mana ability, even if you know that it will produce mana.
- 16 March 2018You add eight red mana only the third time Soulbright Flamekin's ability resolves in a turn. You won't get the bonus the fourth, fifth, sixth, or any subsequent times in that same turn.
- 16 March 2018When Soulbright Flamekin's ability resolves, it counts the number of times that same ability from that same creature has already resolved that turn. A copy of this ability (created by Rings of Brighthearth, for example) will count toward the total. Abilities from other creatures with the same name don't count towards the total. Neither does an ability that didn't resolve because its target was illegal.