There are two ways this can go. Either they win and he shows up to congratulate them, or they almost lose and he makes it just in the nick of time to save them. All according to plan.
I kinda want there to be a plot twist that she is right. That the master really did calculate all this and the 'Oh no all this stuff was by accident' was just an act.
Would be pretty funny and if they keep him as a secondary character while Tino is who the story focuses on then it wouldn't really be too bad.