[HMM IV OFF TOURNAMENT] The fourth stage of the John Van Canigem tournament

(Summon)

Hmm... The rules actually prohibit it. Specifically, in this tournament.
General ZeT, everything will be fine soon!

"Lift my eyelids!" - I don't see such a ban in the rules. Maybe the browser is glitching? :)
Banning a skill on a map is by no means a rule violation. It's just a minor inconvenience that can be bypassed in several legal ways.