If you pick a base character then the prime gets removed as well, the better version cant exist without the base version, however if you remove a prime version then the base character can still exist. My personal pick would be Valkyr due to how [IMO] useless she seems

Let me explain a bit more, I usually buy vaulted primes off of the warframe market, on xbox [the console I play on] she runs for about 250p on average. I am trying to get Mesa and Titania prime, so I was wondering if I should just put off those 2 and go for Saryn Prime, or if I can still make Saryn into a nuke, it'll just take a bit more effort, and probably a bit more forma.

I have both of them in the foundry, but due to circumstances I can only claim one soon and the other one down the line.I myself am indecisive so I thought I'd come to the community for help. I main Octavia but have built her for steel path if that information is relevant in your comment of helping me choose. Thank you to those of you that help me choose.