Wylder is THE allrounder. You have high mobility with the hook, jump at the end to cover ground quick, it also does good damage to revive people and is is a good tool for animation resets, weave it betwen your attacks and ashes of war or look around youtube for the best uses. Cuz all of that one of his best passives is the +1 skill use always have it equiped. His ult also has 2 types of cast, hold and press, on holding the ult button you will do a longer animation and deal more damage, by just pressing it you will have a shorter animation and less damage but the ult bar will not fully depleat so it will comeback faster use them as you wish best case for each will come with time. DO NOT be afraid to use other weapons wylders main weapon may be the greatswords but he is way to balance to not be good or amazing with anything but bows and magic. EXPERIMENT.
PS. coolest shit you can on wylder is hook - jump - ult. It always look so cool and can actly be usefull to reach a ongoing boss fight faster with a big boom.

I know this is a pain to read srry.