Years ago, Jori En, Ruin Diver caught my attention as a payoff for casting 2 spells per turn, which I thought was a nice balance of incentives - rewards to multicasting without a payoff for huge combo turns, plus it incentivizes letting other people have a turn so you can cast spells on their turns as well. But unfortunately the payoff wasn't really big or interesting enough and it never ended up going anywhere.
Enter OTJ/OTC, which reintroduced the double-spell theme as the UR archetype, with - because this is 2024 - not one, not two, but FIVE new payoff commanders.
Malcolm, the Eyes - worse Jori En mostly, pass.
Kraum, Violent Cacophony - improvement on Jori En, but still kinda underwhelming.
Stella Lee, Wild Card - neat, but similar issue as Jori En in not developing the board, plus way too many infinite combos.
Breeches, the Blastmaker - inconsistent, doesn't seem very good.
Eris, Roar of the Storm - perfect(?)
I like Eris' design a lot for a couple reasons. First, it does the double spell payoff right by giving a pretty significant payoff for doing it, not something that could be easily replicated with any number of easier setups. Second, the cost discount is really cool because it requires some thought to exploit while also maximizing the cast trigger. It can keep Eris at 2 mana for the whole game, but only if you're smart about how you build the deck. Finally, it has a clear wincon instead of faffing about drawing a few extra cards: make some big dragons and punch people in the face. A nice happy combat-focused ending for an archetype that often devolves into infinite spellslinging wankery.
Anyway, right now I'm mostly looking at my curve and how to best exploit stealthy mana values in order to get a good discount without having a horrendous pile of uncastable garbage. I also want to have a focus on looting/rummaging to make it easier to bin expensive spells So here's where I'm at atm.
Looking at it now, I think I'm way over on mv 3 & 5, should probably cut those down. The curve probably wants heavy 1-2 mv, and then a gradual taper off from 3-10, I should think.
edit: reposting with actual counts so I can see the graphs intelligibly xD