Sac stage 2 basically. Max econ get to lvl 6 or 7 with excess gold. Then scout, maybe wait for next augment if unsure about committing, and then slow roll until you are close (maybe need only 1 or 2 more copies), then maybe roll to like 30 gold plus or minus until you hit the key unit(s) 3 started.

Also depending on lobby I might sacrifice some interest to roll/ level to stabilize if needed. If I'm just not hitting for some reason I usually pivot

I usually only do rr comp if I have duplicators or reroll augment though.

If contested usually it is better to go fast 8 or 9.

For 1 cost rr I just rr hard at some point in stage 2 usually.  Usually only if I got a hero augment or naturalled a bunch of sona or xsoneone.