instantwin

okay idk if this is the right place to post this but... some time last year i saw this video of an attack pure pking in f2p. his stats were something like 85 atk, 76 str, 40 def. i can't find the video anymore. have any of you guys seen it? i also remember seeing some videos of archer96 that day so im not sure if they're related videos or something

my stats right now are 90 combat level 70 attack 90 strength 51 defence 81 hp 43 prayer and i am f2p only. what attack would allow me to hit through rune well?