Just started GK; Can't seem to reroll quickly I keep reading about people being able to reroll in "3-4 hours" but I'm not sure if I'm doing it correctly. How do people get 1350 diamonds really quickly to get a reroll? I've been playing the game for 2 days (not straight) but I'm only commander level 7 and I only have like 770 diamonds. What's the trick or what am I missing?