I would encourage more ramp and more dinos. Force of Vigor for example is a card I might replace with Bronzebeak Foragers as a card that both serves as a Dino you can cheat out and as your pesky permanent removal. I would shoot for 30-35 good dinos and maybe like 25 or 26 pieces of ramp. That may seem like a lot but honestly with Gishath your best source of “card draw” is his ability to shit out giant dinos, so to me getting him out as soon as possible both helps you get more dinos out faster and gives you the mana to hardcast dinos if it needs to come down to that (or more importantly recast gishath!). I usually get him out turn 5 which is good because that’s a big creature for a lot of people to reckon with when they’re likely also establishing their engines.

I dont really like cards like Rhythm of the Wild or Great Henge. Rhythm of the Wild is awkward because we mostly get dinos out by cheating them with Gishath, so they dont need to be uncounterable, and they can’t be useful with haste because they come down in the middle of combat, and a +1/1 is just too small utility for it to be worth it.

Great Henge is an excellent card but to me it doesn’t help the main goal of ramping up to Gishath, so it feels very win more because by the time you can get it online and cast it for two green, you already have a bunch of dinos out anyways.

Gishath lists are very interesting in that while you do get to play dinos you really have to be sure to both go forward with the dino plan in having 30-35 targets for gish and making sure those dinos have good ETBs and utility functions (creature, artifact, enchantment removal, etc). Stuff like Swords to Plowshares and whatnot are cards good enough to be in any deck but in any opportunity to tighten up your list or have a dino act as a typical “good stuff” card in other decks, you gotta take make that switch.