Trundle is a very straight forward champion I mean hes a Troll so maybe not the brightest but he makes up for this in the shear amount of damage he does, Trundle is not someone who you want to play if you have a bit more of a passive play style now this doesn't mean go into engages like under tower or 1v5ing but just know when to pick your fights there are times I have 1v5d and won others ive given a bounty to there carry and gg wp afterwards..from the enemy of course. There are 3 key things that make Trundle so good to play and they are his insane attackspeed, his healing that even baffles me at times, and his speed sure he is a bit tanky late game with this build but a tank moving that quick is kind of insane.

Rush your Trinity without that item you will be useless, in season 10 trinity was your bread and butter once you built that it was gg often times i would skip bloodrazor and just build trinity into bloodrazor however with item changes and champions benefiting from these changes trundle has a mid game power spike vs an early, Your main goal as Trundle in the early is to not only farm but to ensure that nobody loses lane as this can cause your spike to diminish to late game. Just try to secure obj and gank when you oan