Garudothunder

Garudothunder (or GuldThunder) is a red Fenghuang monster in a phoenix-shaped hemlet. It can attack with its retractable tail & use fire attacks.

In the first season of Kamen Rider Dragon Knight, he fought Kamen Rider Dragon Knight & Kamen Rider Sting. Destroyed by Sting's Final Vent.

Garudothunder returns in the video game Kamen Rider Dragon Knight: Fight to Survive, in which he becomes Chris Ramirez's Advent Beast.

Kamen Rider DCD
It is shown briefly fighting Kamen Rider Dragon Knight alongside Omegazelle & Zebraskull Bronze.