Otherwise +1 from me! :D
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I would add some spreading seas or other similar cards that effects land(s) your opponent control, so you can use the islandwalk from LoA, if you can find some cheap ones :)
Think I will remove Master of the Pearl Trident or Lord of Atlantis since the boost is the same, for some Halimar Wavewatch for early defending and dmg or Triton Shorestalker for alittle more fast phase dmg from round 1 :DOtherwise I´ll joine the ranks in which Umoonpuca said :)Ps - im not quite done with my own, but it looks pretty much alike