Is it worth it selling DFS for Claws? My inven is going to comprise 5 brews, super assault, super power, and then like three superb restores and one prayer potion, together with RS gold the remainder being rocktails. I've a tortoise that I will fulfill rocktails. With AGS and authentic article equipment I got two solo (such as minions).
Best way would be cannon/steel titan/frem boots 4. The fastest method is to simply alternate between Rex/Supreme on a 2k planet with cannon shooting, then range Prime if you get any time while both Rex and Supreme are dead, or even just let cannon (and/or titan) kill Prime. Titan hits very correctly on Supreme but maybe not as much on Rex. Prime is quite weak to titan, but not as much as Supreme.
Ideal gear would be Nex armours and chaotics, surgebox and arc flow when maging to the higher damage and Divine/Elysian/Chaotic/Drag guardian for Supreme, based on whether you are comfortable flashing soul divide while Prime is on you or not. A good deal of cannonballs will probably be squandered on Spinolyps, therefore lots of people prefer not to use a cannon, but it will speed it up a lot.
In case you don't need to tank Supreme, don't attract a cannon (or if you do, then time that your kills/placement perfectly so cannon only hits Prime or Rex (or even Prime expires before Supreme spawns and visa versa)) and kill you tank 3 (or just Prime/Supreme if Rex does not disturb you) while praying mage/turmoil. Once Supreme is dead you receive Prime to ~1/4 or reduced hp (not too low or Deflect magic will ko, unless you are using normals to get Augury/Rigour, in which case get it 1/10 but make sure not to kill it). Subsequently kill Rex and cheap OSRS gold Prime fast as soon as Rex dies, then run out and kill Supreme prior to repeating.