Cheapest priced copy (The Lost Caverns of Ixalan Commander): $1.29 at Card Kingdom, near mint, their price list as of .
Ranging Raptors 
Creature — Dinosaur · 2/3 · Uncommon · Ixalan · #201
Enrage — Whenever this creature is dealt damage, you may search your library for a basic land card, put it onto the battlefield tapped, then shuffle.
Legal inCommanderPioneerModernLegacyVintage
Not legal inBrawlStandardPauper
3 printings · $1.29 to $9.99 at Card Kingdom
| Set | Number | Rarity | Card Kingdom | Foil |
|---|---|---|---|---|
| Game Night 2019 | 49 | Uncommon | $1.49 | — |
| The Lost Caverns of Ixalan Commander | 249 | Uncommon | $1.29 | — |
| Ixalan | 201 | Uncommon | $1.29 | $9.99 |
2 rulings from Wizards of the Coast
- 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.
- 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.