Ridgescale Tusker and Primeval Protector would be fun to blink with your boss. Maybe Druid of the Emerald Grove and Heartstone

Soul of the Harvest would give you another Trample creature and Blinking activates the card draw ability.

if you are going to be running swords, I cannot recommend Sword of Feast and Famine enough. Black removal spells will be no match, and getting to untap your lands is huge.

if you're gonna be spreading counters around I might also recommend something like Karn's Bastion to help spread some counters around. Proliferating is also really strong because it lets you do things like give things more -1/-1 counter or poison counters too.

If you like bouncing things and also controlling your opponents creatures a little bit, I highly Eldrazi Displacer for flickering your own stuff for protection reasons or for abusing ETB triggers, and your opponents stuff. It's nice because it is repeatable, so you can tap down your opponents creatures, or your own whenever. It's great for unequipping creatures from gear and enchantments and stuff. best of both worlds.

If you like big dumb creatures I might recommend Titan of Industry because he is an absolute monster, and has great utility attached to him, and he can give out shield counters which can be super fun to take advantage of if your gameplan is counters on your creatures.

I think generally your deck is really creature heavy, and so if I were to add these cards myself I might run fewer creatures, but that is my personal preference. It looks really fun to play!

oh also forgot to include Basri Ket!

Looks fun!

Workhorse goes infinite with Emiel. Infinite ETB triggers. Infinite mana with Heartstone out.

Charming Prince is a neat card. You don't go infinite with it, but if you're against decks that permanently steals cards (Etali, Primal Storm, Xanathar, Guild Kingpin, etc) this can get them back. And if you have enough mana, you can bounce it repeatedly to save creatures from boardwipes.

Be careful with Yisharn, its ability prevents you from going infinite with Brood Monitor, since you have to sacrifice the eldrazi for mana.

You may want to consider adding some low mana ETB creatures for tempo. Right now Emiel is cheaper than most of your pay off creatures, so you're going Ramp -> Turn 3 Emiel -> Turn 4 Creature (4/5/6 drop) -> Turn 5 actually getting to activate Emiel for extra value. Wall of Blossoms, Elvish Visionary, Wall of Omens, etc are good chump blockers, replace themselves, and can accelerate you earlier than the big creatures that are targets for removal.

One thing I don't get is why Polyraptor is there, it's a good card but I don't see much synergy with Emiel?

Guardian Project and Blessed Sanctuary both seem strong in this deck. Cards like Sakura-Tribe Elder and Burnished Hart seem less effective than say Solemn Simulacrum or Wood Elves in the same function. Teleportation Circle and/or Conjurer's Closet add some redundancy to your blinking. 35 lands seems a little low, but you do seem to have a fair amount of ramp. Polyraptor is a funny card but I'm not sure it has a place in this deck... Gruul or Naya builds might prefer it.

Love what you did with it; this looks like a lot of fun to play!

H-E-N-R-Y thank you the deck is a lot of fun to play especially that I just added a bunch of cards some that people recommended Soulus101 and Bellairsand Cowmmunist thank you for the help