I think 4 of Lightform and Rageform is a tad too much due to the double colour mana. You may have some good lands, but you can't always guarantee it will not be a dead draw.

i'd put Sagu Mauler into the maindeck and find some way to fit Torrent Elemental into the mix. I'd probably go 2/2 with lightform cloudform and look to add something like Feat of Resistance or Valorous Stance. Also 16 of your lands etb tapped. If I was you I would look to shave that down to like 5-7 tops.dropping tapped lands on turn 3-4-5 isnt going to be beneficial for you. Don't be scared to use basics- you can fetch them with trail of mystery.

Good luck and let me know if I can help in any way. Welcome Back!

Wildcall may have a place in here. I'd consider dropping Kheru Spellsnatcher It's morph is just way too expensive. You should look at adding 4-8 one-drops, otherwise, your deck may not get going as quick as it needs to.

Thanks for the suggestions so far. I was worried about my land choices, so I will work on getting that in better shape. Definitely feel that I need some 1-drops but should I go with Kin-Tree Warden or something like Elvish Mystic?

Kheru Spellsnatcher flips up from manifest for just 4 mana. I think it is a nice inclusion. I like playing Elvish Mystic over Kin-Tree Warden, and you should definitely bump Wildcall, Hooded Hydra, and Whisperwood Elemental up to 4 copies. Consider cards like Negate, Hunt the Hunter, and Glare of Heresy for the sideboard.

Also, check out this article by professional player, Jim Davis.

Thanks jozef. Missed your comment before the update and like what you are suggesting. I'll take a look tomorrow.

Some amount of Yavimaya Coast might help your mana base.

Sylvan Caryatid instead of Elvish Mystic would help with mana fixing better.

Secret Plans is awesome.

I think you can go down to one Kheru Spellsnatcher as it's not something you want too much of in your hand yet one copy will mean your opponent has to fear and play around it. I also think Secret Plans is too strong of an engine for you to cut (though manifest perhaps makes it much worse). I also would reccomend both 4 Elvish Mystics and 4 of some other two-drop ramp (either Sylvan Caryatid or more likely the afore-mentioned Rattleclaw Mystic) as morph decks REALLY need to ramp up quickly. This'll also help your Mastery of the Unseen do more work. Also I'm slightly worried the double white cost in Lightform will prove too troublesome given that you seem to be splashing white rather than devoting yourself to it. great deck though! Keep at it!

May suggest Courser of Kruphix because knowing what you will hit when you manifest would be very very helpful

I think Courser of Kruphix will hurt more win they also know what you are going to manifest. You may want Temur Sabertooth for bouncing unwanted manifested cards aka lands, spells, anything that's not a creature. You might want a scry engine so you can look at what you are manifesting before you do. Courser can do that but it will also tell the opponent what you are manifesting.

Also take a look at my Morphin Time-Temur deck before manifest it was mostly a morph deck but with FRF it became faster.

I definitely agree that Courser of Kruphix as no place in a mystery deck. I agree that I need more scry and will be looking to make those changes. Also, Temur Sabertooth is a brilliant idea. I already loved that card and hadn't considered how powerful it could be in a manifest deck.

Ghostfire Blade?

You might consider Lens of Clarity - it's actually an awesome card when focusing on manifest - lets you know exactly when to cast your XXX-form enchants :)

watcher of the roost for a single. Temur War Shaman and Pine Walker

How would you compare to Sultai Manifest (Help) ?

I essentially did the same as you except I cut the blue. Making it just green/white allows me to have a much better chance of getting the lands I need without having to spend money or life on cards like Yavimaya Coast. Also I like having 4 Trail of Mystery to weed out all the land and allow for the manifest to be a creature. Check out my deck and you can see the differences Manifeast your eyes on manifest. Also, I like the rattleclaw in there for the exta mana ramping when needed. Being able to morph or manifest it really helps in a manifest-based deck. Also, I would take out Watcher of the Roost and put in Tomb of the Spirit Dragon for life gain, allowing you to put in another creature or two.

Try out more Temur Sabertooths. Those guys pull double duty in my manifest deck. Their bounce ability lets you manifest anything and then return it to your hand. Plus the indestructible ability makes them very good beaters.

Here is my deck if you want to look at it

Manifest GU

I've been playing my own manifest deck Mighty Morphin' Madness lately and what I;ve realized is that you want to make Trail of Mystery a 4-of. It's incredible ramp and helps to thin out your deck for when games run long.

How about Jeskai Infiltrator?

whisperwood elemental as a 4 of for sure, its just waaaaayyyy too good

You are correct, but I currently only have 2, so....yeah. When I do it two more I'll probably switch out Dromoka, the Eternal. That or trim two x4 to x3. Morph/Manifest makes for a crazy ass mana curve, so will probably need some trial and error.