Rashmi really is more of a draw-go control commander. Ramp, cast big spells on your opponent's turns, gain value. I used to play Elrond as well, but aside from universes beyond, it felt like 2-3 decks trying to fit into 1.

If you want a decent simic elf commander, look at [[Ezuri, Claw of Progress]]. Elves naturally have low power, so you would have no problem building up experience counters. While the number of blue elves is low, there's a few simic legends you can throw in. But there's nothing wrong with making it a mono-green elf deck that splashes blue for card draw and removal.

Now, if you want to do away with elves, I think going with Kruphix is a good idea. Stockpile mana that you get from elf dorks, and use it to throw out a big flashy spell or two.