Game froze after restarting for the second time.
Reroll doesn't provide new unit choices.
Items gained are lost in the next day. (I bought maybe 6-10 flags and put them all on knight, he was hitting goblins for 35 then returned to base attack 5 next day)
The game is unbalanced, when slimes round starts you're practically just going to lose. Wizards are the best unit.
Okay, I restarted the game and it just froze again.