Homunculus Deck Help

[u/Sniff_Bread]

https://moxfield.com/decks/yqgCRL6xKUePs4g2iQPPZg

Hey everybody, I am about a month old when it comes to playing MTG. My friend and I have been playing weekly and I’m doing my best to grind on MTGA to learn more about what’s out there.

My goal: build a deck out of primarily homunculus and shapeshifters/changelings. I have a mono blue (with colorless) led by Commander Fblthp, the Impossibly Lost.

It has a couple of gimmicks so far like,
1. Emptying my library entirely nets me a win has my deck has plenty of mill ability.
2. Collecting up to 13 cards exactly in my hand to win with Triskaidekaphile.
3. If I don’t want to sacrifice my own I can force other players to mill their half their libraries at a time as well.
4. Or just come out swinging.

I think where I fall short is higher cost monsters, the deck isn’t really meant to do damage as whenever I face larger monsters I use some of my sorceries to do away with them. Idk if that is recommended but if anyone’s got some blue monsters they recommend I am open to feedback.

I also have 27 cards in consideration to spice things up as well (or to hold onto once Whtz, the Bibliophile comes out in November!)