Before someone posts “They are random...”
First, why are the 22h events random? Second, they just need slight tweaking to be so much better. The Hero Use and Arena Wins are easily attained if you are already arena grinding and many people wait for the Level Up event to get a revive and units for doing something they were already planning on doing. Event Completion should be removed. Just stick to a 3 sequence rotation and we will be happy. And when the rewards are buffed, like promised, we will be happier.