Great fun! Until you reach a higher level and unlock legendary boosters. Most of the time, the boosters are so strong if you are not matched on the same booster level you have almost no chance of having a normal battle. You should match only level 3 boosters with legendary ones. Otherwise it's taking all the fun out of the play and forces you to use / buy more and more legendery boosters. This game should be about players skill, not the boosters you use!