+Scales good late game
+Untargetable
+Very mobile
+Aoe damage
+Snow balls extremely good
+Has cc from ult and e

-Very weak laning phase
-You need to think and react fast
-Hard to master
-You can easliy miss the ultimate

With your trickster you can go through walls and you can go back through the same wall.With that you can steal dragons/barons(if you have got smite) , and you can do a safe face check over walls.

https://www.youtube.com/watch?v=dQwE-ud6WFI

If you don't want to miss your ult every time you can first go with w,q and then land the ult.

Also you must be very careful in the way you are dropping your e.And don't go in whit your e.Save it to dodge an enemy champion skill.And while you are in untargetable your mouse should be standing on the place you want to drop.