Give more feedback to allies!
I have sent a quest and a power-up to my hero, but after I sent them, I got no feedback at all. They are nowhere to be seen, I don't have any information about their status or whether my hero even saw them. It's quite discouraging not to get any feedback. This is the type of things that can get a good idea to fail.
I'd like to have a list of the quests and power-ups I've sent and an status report about their completion.
Hope you add that soon!