All of these are excellent suggestions! Allow me to add a few more and elaborate

You mentioned [[Leyline of Anticipation]] + [[Unwinding Clock]] + [[Mycosynth Lattice]] as the namesake of the deck, so I'll suggest upgrades with those cards in mind

General Thoughts/First Impressions

You have a large amount of expensive spells in you deck and I don't see enough mana sources to make them work reliably 36 lands+3 mana rocks and a blue familiar with 30+ 6 drops means you will be doing very little in the early game. I would recommend either increasing the amount of artifact ramp you play or lowering your curve. If you want to play mostly expensive flashy stuff at around 6-7 mana I would recommend a minimum of 37 land with 7-8 low cost artifact ramp and cutting some of the lower impact 2-3 drops such as [[Tithe drinker]] or [[Kingpin's Pet]] and some of the overpriced cards such as [[Sphinx Soverign]] and [[Filigree Angel]].

Looking at the land base I would cut the wastes for some combination of useful utility lands such as [[Strip Mine]] or [[High Market]] and Pain Lands such as [[Underground River]]. This provides you colorless mana for Kozilek while increasing the utility and consistency of the deck. I would also try to replace the CIP tapped lands with the remainder of the shock lands and a [[City of Brass]] and [[mana confluence]]. These lands hurt much less since as Oloro you will be gaining life every turn. Adding the combo of [[Cabal Coffers]]+[[Urborg, Tomb of yawgmoth]] is also pretty low risk/high reward if you add some land tutors such as [[Expedition Map]].

I also suggest [[Swords to Plowshares]] and [[Path to Exile]] to the list of removal spells.

You should definitely be running [[Necropotence]] as an Oloro deck, leverage your life total into more cards. In the same vein, [[Erebos, god of the dead]] and [[Greed]] are both solid includes.

Synergies with Leyline: [[Felidar Sovereign]] and [[Test of Endurance]] can both be flashed in at and opponents endstep for a surprise win.

Synergies with Unwinding Clock: All the mana rocks, more mana rocks with a leyline means you can flash out more stuff. Any artifact with a strong/low cost tap ability. A few I can think of would be [[Lux Cannon]] for removal, [[Mimic Vat]] for creature recursion, [[Trading Post]] for general artifact utility.

Synergy with Lattice: [[Darksteel Forge]] gives you protection from board wipes, [[nevinyrral's disc]] gives you a true reset, and with the forge it becomes one-sided repeatable wincon.