SpliNter

Resently i've tried modern uw spirits myself. I think they are a little underpowered but its a fun deck though.
Whats the reason for not running aether vial main here? Have you thought about Tallowisp to fetch for Steel of the Godhead?

I play Goblins casually, don't know how competitive they are in Modern.

Here are a few mentions:
Brute Force - is a nice combat trick / sort of burn spell.
Dragon Fodder / Hordeling Outburst - tokens work well with Denizen and kicked Bushwhaker, also great for the Grenades.
Goblin Chieftain - pumps your team, also works great with tokens as he gives them haste. Can you explain why you don't like lords?

Spirit Guide is a great card for some combo oriented decks. With aggro Goblins at a very low curve, it is not worth it I guess.

Howl of the Horde is just bad in this deck I think. Maybe 1 or 2 Shared Animosity could work in its spot, also there is Raid Bombardment for flavor reasons :)

I had great experiences with Teetering Peaks. I know tapped lands are bad here, but maybe one or two can be worth it.

Nice deck!
Think about faerie miscreant or oonas prowler instead of blighted agent. They fit the theme and play well with spellstutter sprite. Unless your want to lean on infect as a main win condition.
I can also see cutting two snapcaster, since there are not that many targets for him and he can be reused with quickling, as well as two mana leak for 4 inquisition of kozilek and thoughtseize.

Your mana base can be tweaked i think. Because of bitterblossom, 4 shocklands are not good. Two are enough. Make sure to play some drowned catacomb or secluded glen instead.
With only two colors, i think you can go with 4 mutavaults with ease.

The green splash only for 4 Goyf is not worth it in my opinion.
It just makes your mana base very inconsistent and provides little to no tempo.
You cant even feed your own Goyf big enough - no planeswalker, no artifact or enchantments. At least you could have run Tarfire for tribal.
I guess even Swiftspear would be better than Goyf in this deck.

My suggestions:
Play Swiftspear or 4 more instants over Goyf and stay Izzet.
Play more burn over counterspells, delver likes being proactive rather than reactive.
Electrolyze and Vapor Snag would be great additions.

Btw Gitaxian Probe is not Modern legal anymore.

I do see this is an old list and Fatal Push was not printed then, but still I think Goyf is a bad splash here.

You will die to blood moon everytime.
Without daybreak coronet you dont even have a very fast clock.
Rethink this idea, im not sure if the blue plash is worth it at all.

Bogles tend to mulligan often, with the blue splash you not only have to have a creature in your starting hand, your lands also have to be correct at the same time.
I took a few sample hands and i often had like a gladecover scout and a fountain, or the stalker and a temple garden after i mulliganed to 5 or 4.

Instead of invisible stalker you could play silhana ledgewalker, she also has a built in form of evasion.
For curiosity you could play keen sense and aqueous form could be gryffs boon instead.

No good point for blue

That is a pretty neat deck, i like it!
Although it looks like it lacks interaction with your opponent. Since zombies are not that big, maybe some removal would be great.
Lord of the undead seems pretty key here, why only 2? I'd play 4 lords over gisa and geralf

I dont know if a bunch of tiny creatures can do the trick, looks a little bit slow to me. You should try some more enchantments like rancor, unflinching courage, spider umbra, hyena umbra, or the white cartouche from amonkhet. I think those are faster than bestow.
You can also tutor for them with open the armory.

So whats the point? Does it work at all?

Not yet, he is next on my buylist. Looks like a good time to buy now.
For me there is no good reason for less than 4 cryptics in this deck. At least 3 should be okay, instead of 1 revelation. Dont you feel like revelation is clunky until lategame? If you resolve one it should be gg, so no need for the second. Cryptic helps you find it.
Anyways im shure your list plays somewhat different than mine.

Solid burn!
This may be greedy, but you could cut 2 lands for the full playset of lightning helix. Have you tried?

Looks solid so far! Although I would play more cryptic commands, maybe you can cut one revelation for it. Also I am not a big fan of mana leak anymore, so i play 4 cryptic 1 negate and 1 dispel main. Thats just my personal preference, but it works fine for me.

So am i, full understanding for it.
Never got my soul sisters deck to a competitive level, but still love to play it casually.
Today im neither playing the moth nor the favour anymore xD

Lightning bolt
Electrolyze
Incinerate
Magma jet
Ball lightning
Monastery swiftspear

I think it is a pretty fun casual deck at the moment, that does not intend to play against bolts, paths, pushes or death shadows.
But sure you are right, healer is bad compared to soul sisters.
Divine favour is sweet on goldenglow moth, making it an annoying blocker. Flavour points for that!

As you prefere, but most of your spells cost 3 or less, so there is no need for more than 3 to 4 lands in play to operate well. Every land you draw after that is more or less dead.
30 lands is unusual in magic. Even slow control decks with big lategame spells rarely go over 26 lands.

30 lands?? You can cut 10 with ease and find some more burn, lightning bolt maybe?

Surgical can extract fetchlands which makes mind funeral better and it can stop combodecks. I would keep it main for that reason.

True conviction has high mana cost, i dont think it is necessary. You could think about 1 baneslayer angel, or archangel of thune to top your curve.
Spectral procession is a good card, but soul sisters dont play it, so you wont need it later on i guess. Also i would not know what to cut for it. Better invest in soul sisters first.
It looks sweet just like it is. Go playtest and then decide

Sure! Good starting point so far

Solid deck for this budget! I think full 8 soul sisters and 4 path to bravery would be beneficial. You could cut soulmenders and mantra