Talk:Nova (Warframe)/@comment-213.130.247.146-20130717195954/@comment-178.221.59.244-20130718140126

Excalibur's Slash Dash is an example of invincibility frames. Slash dash past a Heavy Grineer and they'll slam the ground but not knock you off your feet. Same reason why you can slash dash through corpus Laser Barriers.

In an update sometime in the past invincibility frames for most ultimate abilities got removed, true.