Secondly, as a mod tester and someone who has used quick cast in online games, I can say that it will be used to avoid mistakes, and sometimes, to cheat.
Let's be honest, I once used quick cast on Jebus to cast Greater Omnipotence with an army of 3 angels, 3 hydras, 26 ducks, and a few snakes. I only lost one hydra and a snake. Can you repeat that?
It depends on the hero; give me the save, and I'll try.
Medium, fast army transfer? Are you kidding?
What kind of jokes are these?
Within a limited time, a player without fast transfer won't be able to do half of what I can do with fast transfer. It's a perfectly real advantage.