If it's ability prec can't be reduced, no mastery or node or ability can be prevented to activate, at least that's how it has always worked with him till now, never got a crit failure since he was released
Mysterio is supposed to be immune to ability prec reduction in his description, that's why he never was affected by crit failure till now
He probably didn’t crit fail before because his abilities didn’t fail. Domino’s crit fail works on any (actually most) ability that fails, it doesn’t require her AAR to do anything. OML, duped Mephisto, Archangel, Mordo, etc. are also immune and they crit fail too when their abilities fail. If Mysterio gets an ability that can fail from a node or mastery, he can take crit fail damage.
If it's ability prec can't be reduced, no mastery or node or ability can be prevented to activate, at least that's how it has always worked with him till now, never got a crit failure since he was released
That's not how critical failure works. Supose a champ with an abilitie with a 50% chance to trigger. Although the character is inmune to AAR, he still has a 50% to fail triggering that abilitie, so critical failure will apply. Critical failure applies any time an abilitie doesnt work, it doesn't matter if it is due to an AAR or to an intrinsic probability.
Comments
Resonate mastery? Perfect block/resist? Nodes?
Supose a champ with an abilitie with a 50% chance to trigger. Although the character is inmune to AAR, he still has a 50% to fail triggering that abilitie, so critical failure will apply. Critical failure applies any time an abilitie doesnt work, it doesn't matter if it is due to an AAR or to an intrinsic probability.