User blog comment:Juper0/Rapid Fire Teams, GO!/@comment-6000413-20140402140539

Still haven't tried the mode, but from premises I'd say these have broken mechanics:

Mundo, continuous cleaver streak

Evelynn, perma+70% speed and spikes every 0.3 s

Jax, permanent counterstrike. (no armor needed, just some MR and AP)

WW, hunger strike every 1.2 s

Shen, Udyr, Janna... permanent shields

Fizz: untargetable

Wukong, permadecoy (2s CD, lasts for 1.5 s)