Cheapest priced copy (Ixalan): $0.35 at Card Kingdom, near mint, their price list as of .
Raptor Hatchling 
Creature — Dinosaur · 1/1 · Uncommon · Ixalan · #155
Enrage — Whenever this creature is dealt damage, create a 3/3 green Dinosaur creature token with trample.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
1 printing · $0.35 to $0.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Ixalan | 155 | Uncommon | $0.35 | $0.99 |
2 rulings from Wizards of the Coast
- 19 January 2018If multiple sources deal damage to a creature with an enrage ability at the same time, most likely because multiple creatures blocked that creature, the enrage ability triggers only once.
- 19 January 2018If lethal damage is dealt to a creature with an enrage ability, that ability triggers. The creature with that enrage ability leaves the battlefield before that ability resolves, so it won’t be affected by the resolving ability.