I will give my feedback in the order of what I think is most important;
Premise: Forge Guard are not scaling that good.
1- Forge Strike should be more rewarding
- Anvil Blow should stuns longer
- Reinforce Weapon and Armor should be stronger at a point you can feel you are empowered by doing Forge Strike
- Rending Descent should increases shred duration
2- Forge Guard should tank more
- Liquid Iron should provide multiplier mitigation instead of physical resistance, converting 15% DOT damage into health, idk, something crazy like this
3- Ring of shields need some love
- Healing shields should heal over time instead every 6 seconds
- Ring of shields need a flat wall mitigation so you can feel you are tanking more pressing this skill
4- Molded By the Forge should provide % health and/or multiplier mitigation alongside with weapons buffs.
5- TOO MANY shield talents. merge some of them into a single talent and make new talents with better scalling.
6- Forge Guards need more HP, a rogue with more HP than a LAVA KNIGHT is unthinkable.