are you betting 4 rares in 1 match?

i never do so since i have few rare only and aware if lose, will left no rare, so i just bet 1 rare in 1 match. NO BO1 rare betting unless a tempting match, provided with close monitor on both team performance before bet. never bet low return match ie: 4 rares for return 0.5---0.8 (too risk and low return), of course not every match betting high return team (high return mean low performance team most of the time-too risky as well)

i always bet 40%-60% range, so 1rare can get 1 rare; tempating match 1rare get 2 rare in return;  i know this is slow way gain rare, but still a progress    no greed!

for risky case, i betting uncommon and common, lose also feel nothing, but win is good especially on tempting match ie: Kaipi pawned [A] where Kaipi is aka today Speed Gaming ; that is most deep in my heart case when i so new in d2L betting and simply click bet, won 32 commons by bet 4common; also lose to 1 rares bcos simply click bet as well;

now I know to bet better 

and dont throw away with your duplicate commons and uncommons in simply bet, use that to form a higher item by - deleting them; i so far gain 2 rares and few uncommon by destroy uncommon and commons; something like 7-8uncommon 1 rare

also if you have 'hot' or so call high demand 'uncommon, you can go trade for rare, ie: Jugg wrisp even it is just a common, it can trade for rare; pudge uncommon hook for rare as well, etc