[Rendar]

I like this as a whole in and of itself. However I see a few issues arising from allowing it to critical hit and add that boosted damage. In general, that probably won't be much of an issue. However with VA's this experience becomes very tricky, and with certain things like the new Vorpal, it becomes even more finnicky.

That 200% can become easily an extra 200%+ with a critical from a VA... throw in the fact that a vorpal now ignores every defensive measure we have to defend against it.. I'd like to see a few test runs with this to see how it plays out.

I'll be fine with having it cap at 75% extra damage on your basic attack... but there is another complication I can see with this.

Complication 1:
How will this work with destiny duelist? As of right now, anything that gives a huge % bonus to damage is usually halved if you aren't main-classing what causes it. However you can easily do Sword + Spear and not only get tons of extra stats, but you can use the Staff of Eyes and get a rather nice 12% extra damage bonus. Ontop of this, if Kensei is main, you can Absolute Death for another 25%. You can see where I'm going with this more than likely.

Answer to Complication 1:
Maybe make it so that Ether Invitation has a 50% HP cap for the bonus damage? It still makes it utterly terrifying, but certain things won't be utterly obliterating people due to damage percent stacking (that really should just get removed from the game but eh).