Get a maxed staker with 1 prayer 1 summ, or if you can't be bothered to do all of that training, a 99 attack 50 str 99 def 99 hp 1 prayer 1 summ boxing tank
(Under 100 cmb)
You could always go for 50-80-40 13 prayer rune pure with around 90 range. I could merk any pure with that. You could for a tanker, 70+ def, 99 defense 74 prayer for and 94 magic for venge