Hey there not sure if this will help the lack of gas problem, but you can try it out.

Narset, Parter of Veils only allows opponents to draw one card and then you can play cards like Windfall , Day's Undoing , Magus of the Jar , and Teferi's Puzzle Box to reload your hand but then have your opponents discard their hands and only draw one—-or in the case of Prosperity or Minds Aglow there is no discarding but then you can reload your hand while opponents only get to draw one card. If you do decide to go this route I would suggest one or two tutors for Narset herself and for the instant and sorceries that Wheel and deal. Noble Benefactor is a janky—huggy option for a tutor, and then there are cards like Muddle the Mixture (can get any spell of 3cmc or Mystical Tutor . I cant recall any tutors for green and blue that can get any planeswalkers.

Anyway, hope my suggestion helps. It’s slightly off theme from the sea monsters but it could be a good sub-theme for you to try. Plus the wheel and deals can get ripped straight from Chaos Wand as well.

My only other suggestion if you dont like the wheel and deal + Narset route is to invest in Sylvan Library , Mirri's Guile , or Sensei's Divining Top + Thassa, God of the Sea .

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