Slayer Task : Warped Jelly - Catacombs of Kourend
I found with these ones at level 80, even sharks didnt cut it you really need to bring prayer pots and use Protect from Melee.
What to bring
Food: Sharks (prefer prayer pots)
Potions: Attack Pot, Str Pot, Stamina Pot, Prayer Pots
Other: Runes to High Alch drops.
Usually tele to draynor with ammy of glory. Then walk west to dock. Talk to Varos. Then keep going west. Here is a video of how to get there.
Inventory: Plus att and str pots if you like.