It’s not true, pyro here not for faster pp+iw, fireballs not affect the speed of “splashing icewalls’ shards”, it’s optional rank 7 besides WL.
- WL choice maintain good DPS in WB obviously, especially with new mechanics ranking (you need to maintain damage, or take damage to be counted “in combat” - you are “out-of-combat” when you not deal/take damage over 10s).
- Pyro choice got Flame ground, fireballs+pp instead of DT. DT has attribute, fieballs+pp combo does not rely on attribute - fireballs’ splash not count fireballs’- attribute.
~> At maximum power, WL choice has more powerful (especially, at boss ranking now). Pyro choice is cheaper choice.