I'll add you later when I get back home but what you said is really your own play style. There isn't an assassin that "one hits", you have the choice to keep poking and then go in. Anyways, try Akali and Diana. Only two I can think of right now but I'm almost certain you will enjoy their play styles. LeBlanc on the other hand deals massive damage early game and literally drops you from full health to nothing when she has her full combo, but late game you have to do what you say, deal massive damage, run and wait for cooldowns, and then fight again. She also has technically two built in flashes which can help you escape or get closer to an enemy. Let me know what you think, you can watch gameplays before you buy them.
k thanks i'll try them out if possible sorry haven't had internet at all
I GFX but Haven't in a long time don't like doing it on a laptop
Need to make new Signatures all my old ones have different tags :/