So I've had a 5* skill gem, 60 skill stones, and 99 generic stones waiting for a long time for Blade. I never thought I would actually get him, but just yesterday my friend spun my basic 5* crystal and somehow it landed on Blade

. The problem is, I only have 200k gold, and probably only 50 iso chunks- and none are skill or basic. What should be my plan of attack? Currently waiting for item use on Sunday so I can pump into his sig, but should I use everything on a champ that will take forever to rank up? And any advice on how best to get more iso and gold quickly?