I like 1 or 2 loams. If dark bant can run it we should be even better with it. Saga, hall, boseiju are all very impactful.

I personally dislike lotus field; hands of saga + lotus field or karakas + lotus field seem aweful. The deck is already at the bare minimum W and U sources (14). I am also not sure that access to basic plains is more important than getting green; I would be tempted to run Misty over vista. We already have dragon to get plains.

W + a draw step is a real cost, and you won’t see your targets that much more since you only have one e tutor. There are best targets and worst targets in your etutor package. You aren’t reliably seeing that 1 etutor that much in a deck that’s isn’t running ponder. Either the cost is worth it and you should cut the worst targets for more tutors so you can see the better ones more frequently; or the cost isn’t worth it and you should cut the worst targets for 2x of all the better ones.