Why bring MNK to anything anymore?

[Ephier]

With a Ninja like this https://www.youtube.com/watch?v=BfwucJOTTsA I'm skeptical that there will be no difference.

Have to pay attention to his opener though. If you notice, he crits almost every major hit in that opener, like 9 or so hits in a row? That makes your overall numbers SKYROCKET especially in a 2 minute parse