This honestly looks meta specific to your area. Not because of the Treasure Cruise (I know it's strength: I took up UR Delver solely because of its addition, and it adds speed and is regularly cast by Turn 3 for :u: because of that decks aggression), but because Bog is in the side, Hydroblast is maxed out, and you're not running a basic Forest. My curiosity is why skimp out on the full
Glimmerpost and
Primeval Titan? I get that space is getting tight because Wizards is printing more eternal format friendly cards, and I'm curious if Top is worth cutting altogether and if it is forever. The split with Trinket Mage is an idea that I liked.
And the other more curious question I'm curious about is if you've reconsidered [cards]Dig through Time[cards]. I know the extra :u: makes a difference, but now that you are more familiar with the Delve mechanic, is there other Delve cards worth exploring. And honestly, the reason I'm asking and not reporting is because I've been on a Legacy Hiatus this since I've had irl things that came up shortly after I starting tinkering with UR delver.