Catalyst Golem

Flame Absorption: when struck by a fire based attack the Catalyst Golem sucks all the fire into its flame crystals and will heal the damage dealt instead 

Lightning Rod: When struck by a lightning based attack the Catalyst Golem will absorb and release the lightning dealing 3d8 lightning damage in a 15ft circle around it

Flame Rend: The Catalyst Golem charges it’s flame crystal and then charges a target within 25ft striking them with its large blade like crystal dealing (2d8+str) fire damage 

Lightning Barrage: the catalyst golem charges it’s large crystal on its back then launches a wave of rolling lightning strikes going 30ft forward with a 5ft diameter dealing (3d6+con) lightning damage 

Energy blast: if the catalyst golem hits a target with an attack it can as a bonus action fire a beam of energy from its chest dealing (1d10+int) force damage 

Reaction Name. Enter the description for your action.

Catalyst Surge: once the Catalyst Golem goes below 25% of its maximum health its crystas all start to flow and charge its Chest then launching a devastating beam of Energy dealing (4d10+con) to a target within 60ft of it once the beam has stopped the catalyst golem goes prone till the end of its next turn

Enter the description for how mythic actions work for your monster here.

Mythic Action Name (Costs # Actions). Enter the description for your mythic action.