You can quickly murder the necramechs using your own necramech.

Press 2, press 4, shoot off both arms (aim for the shoulders) and you're good.

If you don't have a necramech, uhhh... ask someoen who does to join you until you do :V

Reddit has done so much worse than that, up to and including hosting sexual content involving minors (and defended it!).

However many it needs.

If I'm dealing with a weapon with riven, I might go for 5-7 so that I get some flexibility. Usually up to 4 for non-riven.

Frames is a more by-use basis. I generally play mostly with prime frames so I will always consider an aura forma, I have a bunch. Then I just start using the frame and as I notice things I want to change to make the frame better, until I stop noticing what could be better. Typically I end up with forma'ing frames up to 3 times, the most extreme being.. 7? I think I made a mistake on that one at some point and ended up undoing it, but I'm not sure.

Focus on a couple of things at a time and figure out what stuff you can trade for.

Personally, I made a spreadsheet for tracking all of this and I used the in-game profile and foundry (once I had the BP of something) to keep track of what I was missing.

Yeah?