Talk:Named item effect/@comment-1120494-20130222131218/@comment-4652200-20130222162415

It doesn't matter if the ability is Ultimate or not, it is the type of CC ability that does.

If an ability e.g. is a type of CC - stun - which Tenacity reduces it gets reduced same goes for  because it is also a stun. If it's a type that Tenacity doesn't reduce e.g. and  it won't affect either as they are knockback/knockup effects.