Erik is considerably more trouble to decide on. Going straight melee with all the dragon/amplification effects is very tempting, but I'm thinking I might need to focus on some more traditional tools Erik has first, as much as "future power is best" looks tempting. Since upgrade trees only cost a single action, I'm going to be abusing that to the best of my ability.
Great Welsh Red, free Shin (tempting Fate here, but so be it)
Legendary Power Armor (3 dots, Scylla/Tamamo/Fenris/Erik/Merlin, 1 Reactor Tap)
Relic Integration (1 dot, Erik)
Prototype Upgrades (0 dots, Scylla)
Enhanced Cloaking (1 dot, Erik, 1 Reactor Tap)
Computer Systems/Scylla Grade Augments (1 dot, Scylla)
Upgraded User Manual (0 dots, Scylla)
Fuel-less Flight/Dash Systems (1 dot, Erik)
Enhanced Environmental Systems (0 dots, Tamamo to protect fertility)
Kinetic Storage Boosting (1 dot, Erik)
Concert Boosting (0 dots, Erik)
Machinery (0 dots)
Innovation (1 dot)
Death's Reflection (1 dot)
Nuclear (1 dot)
Aerial Battleships (1 dot)
That's 12 dots and 4 Scylla actions, which is maybe stretching it? I could drop Scylla Grade Augments, but I feel like hacking/spiritual attack protection seems somehow important. 6 Erik actions as well. 2 Reactor Taps total to avoid red-lining. I saw
As it is, he's using 5 multitasking turns to add in runic effects for the cloaking, controlling the Legion of Coal in getting the mecha pulled out of storage and built, figuring out ideas for helping lower the costs for certain functions on the ship, and working out some ideas for upgrading equipment for the Wolfen due to the sheer amount of issues the Wolfen has had with curb-stomping all her enemies to the ground.
And since I'm writing this, and working on this rather than finishing off his new character sheet, I'm saying that he has 9 multitasking options right now.
And assume that means using more than 4 Scylla actions is too much. Otherwise I'd save myself 2 dots on Flight Systems/Cloaking and get straight to Cloaked Firing, and probably burn that on extra durability, I guess. Also trying to maximize building capabilities while getting sufficient defensive/mobility options for now.