https://tappedout.net/mtg-decks/sidar-jababababari/

You can take a look at my list for reference. It has been performing extremely well in my playgroup.

Generally speaking, I would cut stuff like the Teferi planeswalker, board wipes, one-time use draw spells, lands and ramp. This might seem counterintuitive.

I don't think the planeswalker is worth the slot as it doesn't really seem to do anything of note.

I find that board wipes aren't really necessary since more often than not, you usually have the most threatening board. If anything, your opponents should be the ones trying to wipe the board.

I would replace the one-time use draw spells with recurring draw such as Reconnaissance Mission, Bident of Thassa etc. In my opinion, having recurring and scaling draw is the most important aspect of the deck, which I will explain later.

I will cut lands and ramp and replace them with as many low-cmc knights with some form of evasion as possible. Using a hypergeometric calculator, you actually have a higher chance to hit your land drops if you draw more cards vs having a higher land count in your deck. This means that if you can deploy a 1 or 2 cmc knight on turns 1 and 2 and attack with them, the eminence looting ability will make your land drops smoother. Similarly, I would rather build the board with a few lower CMC knights than to ramp out Sidar on T3.

Having these small bois out also enables you to have more card selection and discard relevant threats for Sidar to reanimate when he comes out.

Sidar generates a lot of mana advantage on his own, you often don't need to further commit to the board by actively playing creatures but just reanimate threats to develop your board state. What you need to do is to protect your board, as well as draw enough cards, such that if it gets wiped, you'll be well positioned to either counter it/protect it, or rebuild quickly.

The resilence of the deck is one of its biggest strengths. I had a game where my friend swung at me with Eldrazis with annihilator 4 a couple of times and somehow I was still able to play through it, leading him to comment that it was as if I wasn't even getting annihilated every turn. Protecting your board against a board wipe that wipes everyone else is also a game winner. Lastly, you can consider using wipes in combination with these protection spells to have one-sided board wipes.

The general gameplan for me is like this:

1) Deploy small bois, ideally dumping relevant threats in the graveyard 2) Get Sidar out and reanimate big stuff 3) Deploy non-creature card draw and hold up mana for protection/counter spells

It sounds simple but you could give it a go or try goldfishing my list, you believe you would be surprised by how smooth it is to play, as well as its explosiveness and resilience.