Which 7 star tech champion to rank up to R2

THUNDERBIL

I have Omega Sentinel at R2.
I also have these champions at R1 - Warlock, Guillotine 99, Iron Man Infinity War (awakened), Sentinel, Rocket Raccoon and Punisher 2099.

1. Iron Man Infamous
2. Lady Deathstrike
3. Prowler

THUNDERBIL

Where are the poll options? Did I do something wrong?