Here is some photo proof of what happens in drawn out stalemates or if you get good hands:

https://imgur.com/oURdoHM

https://imgur.com/f0Qi0W3

Honestly ive been tweaking and changing this for weeks. Usually im grabbing God-Eternal Rhonas. All you do is setup to Finale of Devastation +10 on him. Finale will give everything you have +10/+10 and haste. Rhonas doubles that and then gives vigilance to everything. i tried the explore package but everyone runs a ton of board wipe so generally i dont like it too much. Sideboard is kinda rough, would take advice in that department. Anthing used in it always helps could even add other Nissas for Nissa's triumph.

Tested on MTGA in Traditional draft.

Hardest matchups:

     Super friends

This deck will be the death of me. Seriously though. i usually just concede cause i get bored of watching them play out a 10 min turn for all their planeswalkers. Dont even get to play the game lol.

      Mono white

These 2 absolutely are boring to play vs. You kinda just watch them both play out their whole hand. Mono white gets to shutdown your big creatures and stall your boardstate. Don't know of much solid removal for them or a board wipe. Kinda just gotta show who has the bigger shlong.

     Stompy

Usually just ends up seeing who draws better

Easiest matchups:

    Red Deck Wins 

Like a 80% winrate vs this deck. If you can keep up with their board state/burn enough to hit turn 5-7 for Hydroid then most of them auto concede or rope you. The Act of Roping=When your opponent waits as long as possible until their timeouts are used before playing anything in hopes of you getting bored and just getting out of the game or D/c'ing.

   Mono Blue

They lose after you turn 1 Arboreal Grazer, the reach is too good and stops Curious Obsession. If they stall you for long enough though and go wide you can still lose to things like Tempest Djinn and Surge Mare after the sideboard. Not too hard though, just grab vivien, watery grave, chromatic lantern and the assassins trophy.

If you want just run the explore package instead of Vine Mare, Steel Leaf Champion, Ghalta, Primal Hunger, and anything else you wanna take out.

Overall though, the deck does what it needs to. It is really fun and would recommend for anything you wanna play it on. Feel free to ask me questions on anything and give me some tips! This is the first deck ive made in Standard and posted here.