Gotcha! So just for reference, normally for old gen RNGs I just aim for a highly specific IV or two somewhere (like a 0 in Attack or specific Speed IV) + Neutral Nature (due to how the super sitrus berries work, a neutral nature + mint is better than the actual regular nature. Only super relevant with Trick though!), so most of my RNGs legit don't have me advancing frames at all LOL
That's probably a bad idea to try with Manaphy considering the one shot nature here, so I'll be looking at higher amounts of frame advancements just to make sure. Just to be sure, for Manaphy as long as I RNG it in a Pokemart that doesn't have NPC screwyness (so the 2 ones in Kanto that I gotta look up again), it's the same stuff as any other method 1 RNG right?
If so, the only legendaries I've even RNGed on this run in Soul Silver are Lugia and the Arceus event Dialga, so perphaps I should start RNGing a bunch of legendaries to practice good frame advancement practices, since I haven't done a lot of that for a while on legendaries just because my low requirements for what I want in RNGs gives me a bazillion viable seeds to choose from.