thorn strike is obviously op, much stronger than stormblast. it has multiple missiles that can overlap and it has 0 nd so all of them hit. on top of that the aoe is bigger, its very easy to control its direction, and you can play it like a ranged class because of its mechanics. the ridiculous wdm and flat dmg is just the cherry on top rly, but i mean you can put it at 8wdm and see how that helps, but cb and procs are still doing some work with such a multihit
im not even sure how that skill was able to get into an official version, when you see zero next delay you can already tell there is abuse potential, then when you see its wdm it gets really interesting but might still not be op, but as soon as you go multiple missile and zero nd you either need to crank heavily on the wdm or the skill easily becomes crazy op (see old 0 nd druid banshee which isnt even wdm, which could oneshot many bosses and even go through walls). and there should be no dispute about thorn strike alone, even though the overall treewarden skill construct is outdated for the current version, but thorn strike 1.3 as it is clearly is ezmode in terms of offensive power vs enemies that dont teleport