Is Evelynn meant to "assassinate" tanks?
I mean, with her W shredding mr by a percentage instead of a flat value, and her E doing % max health damage, combined with her Q and R being able to quite easily deal 1k dmg each by late game, is evelynn meant to threaten tanky champions (and full tanks as well) more than the average assassin? Of course the damage she has still isn't enough for dealing with champions like mundo and galio, since they counter AP champions, but against a tank who mainly builds armor, I can see her doing quite a lot of damage.
Not that she's useless vs squishies, quite the contrary, but she does have elements that make her stand out from the other assassins.