Yeah they either need to make Cadiro core, like Prophecy shit, you get coins every now and then and then he spawns infrequently in random places, or remove it entirely, shit sucks. It sucks they made a challenge about him too. The only reliable ways to get Cadiro this league are Perandus Manor(which obviously is a terrible idea since the map goes for like 3exalts alone) or to have Janus in Research for Betrayal, but that requires manipulating the syndicate in a specific way, and then getting the research safehouse and even then it's slow as shit and not super reliable. For example I've had the last 3 betrayal encounters only spawn Riker in Research with no one else even though he's friends with Janus and a couple of other no ranked idiots and then all his choices were Bargain shit instead of letting me execute him to rank him up so I can interogate him later for more intelligence. And so 3 betrayal encounters later, my Research that just reset still only has 2 members(whoever's at the top I forgot and Riker) with 0 progress.
And even then, you need to use a specific amount of coins which is the worst way to go about it. Not "buy from Cadiro 5 times" or something, but buy 5000coins. Only that so far he's sold me 3fusings twice and 3 alchs twice, and then an overpriced Devoto for 3k, so I'm missing a bit less than 2k still. But who knows what's next, maybe he'll want 7k coins, and I don't have them and buying them is a huge pita as they cost .1c atm which is really high, because there's so few sources, since the Synthesis Perandus coin memory isn't particularily common.
Just terrible fucking design. Between that, the RNG super boss and the unshareable RNG based memory reward challenge, shit's so bad for 36. At least I could buy Cortex, and technically I should be able to buy Cadiro, maybe, if I don't run into a scam AND it's the right amount of coins.