200 mcs is decent and can get you into most clan. Fastest way without paying is doing all the legends and hitting Lotl/goth
Get all eb bonuses: BR 13%, EE 50%, Event Fate chest 25% and use silver/gold crux chests on premium eb's. Build as a Hansel and u will grow as fast as how much u play and willing to spend.
500k cs is what you should strive for in KaW. You can hit almost any tier 3 eb. No point to go any further.