How do you play Karma these days

All I really want to know is how people play her compared to me as I'm not new to her or anything but I can definitely use some pointers. I play her exclusively as a Mid Lane Utilimage, so maxing Q first is a given but I always max E second because as it has a lot of uses. I take to rushing as early as possible along with upgraded so I can spam it(E) on myself and teammates, the alacrity boost helps to provide more mobility so I get there in time to save a teammate and give them a few more seconds to either take the kill or get away. I choose not to go for because I prefer the magic pen from mage boots and with Grail alone Inner Flame is on a 3 second cooldown while everything is like 7-9 seconds. After I've gotten those 2 items I get then build according to how the game is going. This way I end up as support that hits like a truck late game and by this I mean I usually come with like 25+ assists and never go above 15 kills(and even if I do it's pretty rare). Deaths are not really a problem as thanks to EW/WE(usually followed up by a Q) combo I usually come out safe from skirmishes and in teamfights. Also on the topic of teamfights, I make it a point to land W on someone while I cast RE so Mantra is back up to be used just in time for an RQ on any stragglers or chasers if the fight went awry. So yeah, that's about it.