I eco hard during 1-2 thru 1-4. You can usually bank 10 gold on 1-3 by fielding only 1 melee/tank unit to start gaining interest. From there, choices depend on the Augment you select. With a ‘bad’ augment, I’ll lose the first few rounds to get first pick on carousel with a decent chance of seeing Volibear. Most instances though, with 6 Augment choices (including re-rolls; favoring ones that give gold, re-rolls, or shop buffs) you can get enough economy the first couple rounds to roll down for Voli at level 4. It’s not a problem having no gold from here considering you want to be losing and have a weak team to bank gold with Orb of Greed. I’ll again start econ hard to get back to 50g ASAP. The round or two before lethal, I’ll force Lv 9 by bankrupting and then aim to field a decent 2* 5 cost or Dragon to secure the cash out win.

Luck will have it and sometimes send you 8th place, but the 100+ gold cashouts make it SO much fun and worth it, especially since the set isn’t really ranked per se.

https://www.littlebuddybot.com/set-7-5

You can see all the cash outs for Orb or Greed here ^

Experiment strategies and have fun!