Prioritize readability over wow, look at this alt-art frame with 4pt font. Pick a clear back strategy (custom backs reduce confusion fast)
The deck does run four anthem type effects for our Rats in: Vanquisher's Banner, Coat of Arms, Haunted One, and Metallic Mimic
It is rounded and will make games better even if it might not be the optimal card
The biggest loss is probably Temporary Lockdown, but we also lose a win condition in Jace, the Perfected Mind, land destruction in Demolition Field, and a few fringe sideboard cards like Destroy Evil
Load up on cheap vampires like Viscera Seer , Vampire of the Dire Moon , and Shadow Alley Denizen to swarm the board before Edgar even shows up