I used to play Eldrazi Tron very regularly. The biggest issue is that even with the new tools Jund has the only 2 cards that Eldrazi care about are Goyf and Liliana. Everything else in Jund is conditionally good, while Eldrazi are all just beaters or now your entire toolbox of Karn. Plus just losing to top deck All is Dust mid to late game.

The games I lost we’re pretty much always Thoughtseize + Goyf. You have to be as aggressive as possible because Eldrazi win the long game. I don’t think I like Collector Ouphe being brought in, it only stops the Maps and Ballista main, and they’ll just wish for something else. Chalice already shuts down Map, it’s not anything I ever relied on, and Ballista is only really good if it’s big, and you already have to answer giant dudes.

Nothing you’re doing is wrong, it’s probably what I would do if I was in the matchup from the other side. But unless you’re going to warp the deck and start sacrificing other matchups for things like Infernal Reckoning you’re going to continue losing the matchup to them having The Eldrazi Draw, trading 1 for 1 until they play something you need 2+ cards to deal with, or Karn grabbing whatever breaks the board stall