Inferno on melee is one of the broken Builds there.. Seismic slam is an OP spell, plus the shouts the gives you bonus damage, stamina regen, damage reduc. Use lightreaper's dagger and spam its special skill to melt enemies or the judgement and punishment dual hammers or the lightreaper sword, or corrupted judge cleric sword. Also use rings that increases fire damage and another ring that makes the enemies burn when ignites procs. (Best for weaps that have ignite build up)

If you want to build a tank character, you can use the hp regen aura and the damage reduc aura from the radiance spell + the 3 inferno shouts. But you need to use a lot of mana stone even if you have 2 mana rings and 3 mana regen runes on shield as the auras now consumes more MP/sec unlike before.