i have and idea about coliseum reward for player who have consecutive win in coliseum attempts..
it would be better if player who won consecutive coliseum matches get a "real" reward item instead of those temporary power boost...
player with 5 consecutive win in coliseum get brandy
player with 10 consecutive win get pearl
15 consecutive get hi-level gear or special fortification gems (or another good item)..
something like that would be good. so players will put more effort on coliseum matches