Herald of Thunder
Support Gems:
Innervate – Boosts your elemental damage.
Longshot – Enhances range.
Ambush – Increases damage when you’re attacking from POE currency the rear.
Lightning Penetration – Boosts damage through lightning penetration.
Flame Wall
Support Gems:
Arcane Tempo – Reduces cast time and improves utility.
Spell Cascade – Helps to buy POE2 Currency apply Flame Wall more effectively over a larger area.