I enjoy control decks which are tough to make work in EDH due to the nature of having 3 people to keep in check instead of just 1. Even my Ephara deck is pretty light on counter magic. But this deck uses a lot of spot removal and counter magic to trade one for one along with a few wraths to deal with board states that need to be wrathed away. Since I don't have white, my wraths are just for creatures except for Cyclonic Rift. I might add in a couple other mass bounce spells if I feel they are necessary but I want to try it out this way first.
There are a number of cards that are somewhat questionable but for my creatures I wanted to do what I could to ensure they drew me cards. Either directly via a trigger or just dealing 3 damage so Sygg would trigger. Specifically, Blacklance Paragon gets a pass for this as it can deal 3 damage when needed but also sort of doubles as removal. But it otherwise isn't too impressive so I can see the argument for cutting it but I wanted to give it a try.
Thassa is a bit on the gray side of things as well as I only have a few creatures that have good ETB triggers, but they have really good ones to remove threats so I wanted to give her a try to see if she could help double up on a few things. She also potentially gives me an indestructible threat later on and can tap down some voltron generals or big threats if I need to. I think I only have 8 creatures to flicker so she might not survive too long.
Otherwise, I tried to make my removal suite cheap. Slaughter Pact, Rapid Hybridization, Pongify, Snuff Out are ones where they can be cast for cheap or free (Pact is delayed, but that's fine). Pact and Snuff Out do only hit Nonblack creatures which can be a problem and it is also one of the reasons Malicious Affliction didn't quite make the cut. This could be a mistake but I found when playing the deck nearly a year ago that getting the copy was somewhat rare so the biggest draw to it didn't materialize all that often.
One major thing that might stand out is the lack of mana rocks. I generally do have some but with Sygg being cheap and none of them helping me cast him earlier thanks to the 2 color requirement, I have eschewed mana rocks in this deck for now. I might need to come up with a way to ensure I hit land drops, though the card draw helps with that quite a bit. I never felt that I missed the ramp of mana rocks too much so I don't know how much I need them in this build.
I haven't played the deck yet with these changes so I am hoping to see what it can do on Wednesday. Until then, I will probably just keep goldfishing with it and tweaking things I can think of. Though goldfishing a control deck is kind of difficult.