Man, the game just keeps throwing 3-day affinity boosters at me. I redeem the one from the OLDFRIEND redemption code so I can finish leveling a few things for mastery, 12 hours before that one ends I get another from a sortie reward that I used to Forma a bunch of stuff, and now I'm coming up on my 250 day login reward that includes another one. And I also still have the PS+ booster pack I could redeem for yet another one. Gonna have to start building some mastery fodder if I don't want them to go to waste, I suppose. Does get a bit tiring farming defense missions, though (if I'm leveling something, I usually switch back and forth between Helene Saturn and Stofler Lua, with a booster I can usually get a frame and three weapons to 30 within 3 15-wave runs).
Also, since the other day when I posted about not knowing what to Forma, I've ended up Forma'ing Nidus, Pox, Frost Prime, Opticor, and Tigris Prime. And holy shit Pox is insanely strong now. 100% status with four elements and it just chews through virtually anything. Even better, I pair it up with a Condition Overload build Silva & Aegis Prime. The damage is insane.