Gildron — Catch a Monster Guide
Ground Mythic Tier B Boss / evolution base
Last updated: 2026-07-09
Defeat Gildron in its cave at the back of Duneveil Isle. It drops Gildron's Egg plus Gildrock (Bedrock) Bracers used in Mountusk evolutions.
Overview
| Element | Ground |
|---|---|
| Rarity | Mythic |
| Tier (July 2026) | B — Boss / evolution base |
| Best mode | Evolution material farming |
| Drops | Gildron's Egg, Gildrock Bracer |
Where to Find Gildron
Location: Duneveil Isle — cave at the back of the island
Defeat Gildron in its cave at the back of Duneveil Isle. It drops Gildron's Egg plus Gildrock (Bedrock) Bracers used in Mountusk evolutions.
Evolution
Four paths: Solron (Secret — 1 Frostfeather Shard + 10 Refined Ground Gems + 1 of each other gem), Mossron (grass), Inferron (fire), Glaciron (ice), each using a Frostfeather Shard plus the matching gem.
Materials: Needs Frostfeather Shards (from Frostwyrm) and Refined Gems.
Planning an evolution? Use the Evolution Calculator to check the full recipe and see which materials you still need.
Is Gildron Worth Using?
Base Gildron is only B tier, but its Solron secret evolution and its Gildrock Bracer drops (needed 10x per Mountusk evolution) make the boss a mandatory farm.
Team synergy: Farm Frostwyrm for Frostfeather Shards and Aurabulls (just outside Gildron's boss room) for Refined Ground Gems — everything you need for Solron is on the same route.
Gildron FAQ
Inside the cave at the back of Duneveil Isle. Aurabulls — which drop Refined Ground Gems — spawn right in front of the boss room.
At the Pet Evolution kiosk: 1 Frostfeather Shard + at least 10 Refined Ground Gems + 1 each of Refined Water, Grass, Ice, and Fire Gems.
Gildron's Egg and Gildrock Bracers — you need 10 Bracers per Mountusk evolution (Frostusk, Volctusk, Terratops, or Titanusk).