hey this is cody with a guide to get 99attack. hope you enjoy!
first off i would like to say that this is not a hard skill, it just takes some work. you can't just expect, BAM 99attack, you have to kill npc's and it does help you get money.
so here we go, first, teleport to rock crabs. click your magic book, click monster then click rock crabs.
kill rock crabs until 60 attack which then you can wield a dragon scimitar!
after 60 attack start slayer if you haven't started already!
do your task, while doing your tasks (as in many not just 1) you should get your 99attack!
hope my guide helps alot!
sincerely, cody