What is the best way to use spellweaving during the event? Can't seem to figure out how to use it correctly with my magery for max results. I'm sure this has been asked before, if anyone could spare some time to explain or share a link I would be extremely greatful. I've searched all through youtube but can only find videos on skill gaining and stuff like that.
Weaving has different uses depending on how/where you are thinking of using it.
Speaking specifically to the event (maximize hats), I've had success just casting wildfire for the first 50-75 waves (on ATL) since it seems you get "credit" for the wave by doing damage or taking damage (seems to be any amount of damage). If you want to pair it with magery then drop 2 EVs to go along with your wildfire (depending on shard, the first 20-30 waves your EVs won't even touch a pirate bc they die too fast). Another option is to toggle the weaving mastery and drop reapers instead of EVs.
When the levels get higher up - that's when WoD comes in handy because pirates have such high skills & stats at level 75+ that warriors take a long time to damage pirates but WOD cuts through all of that and does 500+ damage at once (depending on your SDI).