[suggestion] Flame axe

I know that this is not the conjure weapon that see much focus in the game and that most don't care about it. However, I think that this weapon deserve to receive some love from the dev after all the love poured into earth shield.

Auto attack: It's no new idea but I think the auto attack need to be a melee attack. Ideally, this auto attack should focus on applying burn at melee range. Let's make it melee, reduce a bit the power damage and replace the might by 2 second burn.

The second change would be to simply change explosive lava axe to a whirl skill. It doesn't need to deal ton of damage, it doesn't even need to apply directly a condition, it just need to retain it's cool down and have a decently long whirl finisher in order to exploit skill 3 and 4 combo field.

That's all for the changes.