Notes & Combos
I was inspired to play this by hendu and found it relatively easy to climb with. Main locks: Ojama + Rivalry of the Warlords/Gozen Match: Toggle on and do this during their draw phase to watch your opponent struggle to summon anything. If you have all three they can only summon LIGHT beasts which is difficult.
Fire Prison + Skill drain
Cauldron of the Old Man: Even though the effect damage is your main win condition, the life gain can serve as a lock of sorts in race situations.
Card choices/non-choices: I'm still not sold on Macro Cosmos. In its place, I have tried Grave of the Super Ancient Organism and Raigeki.
I never liked drawing Raigeki. Grave of the Super Ancient Organism is powerful against what it hits but dead against a lot of things (I'm looking at you Floo).
Eldlich is a pretty unwinnable matchup. Best to concede and queue again. If you are going first and have Macro Cosmos-ish effects ready, go for it.
The extra deck doesn't matter. I chose a bunch of things with graveyard effects in the rare event I face Dogmatika.
Prosperity and Extravagance clash with the cycle package (Upstart/Into the void/Card of Demise), but there might be some combination that works better.
Pot of Desires is a more interesting option. I don't like it because I found myself having to stall until my opponent decks out with some frequency. However, it is good at finding multiple pieces of the main locks of the deck.