Summoning of protector

Name of Power: evocatione protector (Summoning of protector)
Image of what it does: Gorlag the mythic fire golem was found by Mamoru while wondering around looking inside a dungeon of the hellish fire. Gorlag was only pebbles and embers when Mamoru found him. Mamoru quickly picked him up as the demons had start attacking the village close. Seeking shelter together both Mamoru and Gorlag developed a bond and have been together ever since. I summon him by using these special gloves and setting them on fire https://i.imgur.com/Oghtczn.png he currently stands at 15 ft tall
https://i.imgur.com/ZHdPTGX.jpg
Strengths: able to cast fire at any target
weaknesses: weak to water attacks, not able to travel long distances

Could you give him a size? Also say how you can summon him.

Approved.