Ironrooster
Baronet
In the upper left hand corner is the hero screen. Click on it to bring up the list of heroes.Does exist an overview, which of the heroes i should use for getting the main prize?
The Progress Hero grants you an extra mile for each pick you make. This will speed you along the main prize line the fastest. You could also use the Ultimate Hero as well for 150 diamonds which includes all the other heroes bonuses.
Assuming it's like prior events of this nature, the Progress, Special, and League heroes last 24 hours and then have a 24 hour cool down before using them again (unless you pay 50 diamonds). I think the Default Hero and Ultimate Hero don't have a cool down. You can switch heroes before the end of 24 hours and start the cool down immediately.
One strategy to follow is to accumulate rations until near the end of the event, get a daily special you like, buy the Ultimate Hero for 150 diamonds, and spend all your rations in one day.