Very expensive
From Fallen London Wiki (Staging)
The best sources of Soul and Infernal Contract are Bazaar, and the best source of Brilliant Soul is the Rat Market. So the cost is 1000*0.04+75*0.04+80*0.5=83 echoes along with 1.8 actions.
The best sources of Soul and Infernal Contract are Bazaar, and the best source of Brilliant Soul is the Rat Market. So the cost is 1000*0.04+75*0.04+80*0.5=83 echoes along with 1.8 actions.