MapleSEA Episode 2 Aran Trailer

No, it has a 40% chance of making the monster unable to physically attack you. It activates just like power guard/energy charge in terms of damaging the monster.

Ooh the description in the Aran thread is a bit confusing then....it says the duration is 120 Seconds, 40% Probability, Stuns enemy for 5 Seconds ,100% Body Attack...ahh so the 40% probability is the 5 second stun.