5,000,000+ coins recommended
|-2,130,000 per hour|
Siphon self is the special move of the nightmare muspah. Using it generates an amount of energy relevant to your Divination level. From 95 Divination, it generates primarily incandescent energy, as well as luminous, radiant, and elder energy. It also generates some portents of degradation III and signs of the porter vi. This uses 20 special move points, so for maximum efficiency, you should utilise summoning potions to restore those points. This is much the same method as casting fruitfall and similar, though the generated items go directly in to the familiar, rather than on the floor. Muspah pouches last 58 minutes, giving an ideal time to take a short break when one runs out for special move points to restore.
You should set up a bank preset that empties your familiar and fills your inventory with summoning potions. You should also add a summoning potion to your action bar, set your familiar action to 'use special move', and bind keys to 'familiar action' and the summoning potion action bar slot (you don't need one of each potion, any one dose is fine). Thus you can (for example) click the bank, press 1 (withdraw preset), then repeat 1 (cast scroll) and 2 (drink potion) repeatedly until all the potions are done. You do not need to move from the bank, as long as the muspah can fit in the bank area.
Siphon self can be cast every 5 ticks, and consumes 20 points. Thus, can use 1,200 scrolls per hour, requiring 24,000 special move points per hour. Natural regeneration restores 1,800, which means exactly 370 4-dose summoning potions are needed to make up the rest. (You get 60 points when you summon the familiar and haven't used special moves for over 2 minutes - i.e. when just starting after a break - saving one potion.) As there is a cooldown on how often the move can be used, banking to refresh your inventory should not consume any additional time, if timed and executed well. You should also only need to bank every 4 minutes and 12 seconds, additionally mitigating any time lost by banking.
Without using summoning potions, only 1,860 special move points can be used per hour (1,800 from natural regeneration plus 60 at the start), which is 93 scrolls. Just using this gives 270,000 per hour. However, using this method one can also harvest energies for even more profit.
Siphon self scrolls can prove hard to buy on the Grand Exchange, so buying pouches and making scrolls instead may be a more reliable option. This does reduce the amount that can be done per hour, however.
It is strongly recommended to check the live prices on the Grand Exchange before making large investments in any method.
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