This is a weak talent in terms of numbers, but also in terms of design. It just adds an AoE component to an ST spell’s DoT. It’s a very convoluted and bad talent, and would probably be better if it simply made Fireball and Pyroblast explode… but, even then, I’d rather have something that synergizes with our AoE spells: Flamestrike and Living Bomb.
DF seems to have taken inspiration from Heroes of the Storm for the new Incendiary Eruptions talent, that applies Living Bombs to targets hit by Flamestrike.
So, instead of Conflagration, what about another talent also inspired from Heroes of the Storm. A choice node with these would be very cool:
Fury of the Sunwell: Flamestrike hits again 0.5 seconds later.
Master of Flames: Living Bombs spread from explosions can now also spread Living Bomb.
We had double Flamestrike in Legion, it’s just a basic AoE buff. Definitely more useful than adding AoE to Fireball’s DoT.
Exponential Living Bomb spread would be very good for massive pulls, making it a powerful button for M+, or battlegrounds. This would be perfect in terms of talent positioning as it would apply to Living Bombs placed manually, or placed from Flamestrike.
Other cool things we should DEFINITELLY borrow from Heroes of the Storm / Warcraft are the two ults: Greater Pyroblast (currently a PvP only talent), and Phoenix (bring Fire mage back to its WC3 roots! Frost has Water Elemental, why can’t fire get Phoenix?)
We could also have the long range Dragon’s Breath back, from Legion.
There are a lot of cool and interesting options we could have had… instead of choosing the most boring talents, or spreading out basic passives, like Phoenix Flames only having 2 charges, to add the extra charge later. Or, well, pretty much half the tree being such an uninspired mess.