Each heroic race could reward a gold ticket at reaching lap 5. Upon collecting 4 in a row, we can summon a completely random heroic dragon. What do you think?

Interesting, it will never happen for heroics but i wouldn't mind seeing it for legends.

@Nynaevelan I'm glad you liked it. True, it does make heroics too easy to get. I hope they apply something like this for four elemental legends.

Honestly I ain't a big fan of random stuff... principally on DC, that you need to put a big effort to get things...