In Commander, Edgar Markov is an elite payoff for playing lots of Vampire Creatures in your deck
There are a few knights in these colors, but you might feel some frustration that you dont have access to at least black
I was expecting a good amount of ideas, but practical execution not so much, which was mostly tempered by the predictions of the community prior to the sets official release
Stensia Masquerade: this one fits in a white/red deck with enchantments that neutralize or temporarily exile your opponent's creatures
Prince John Fraidy-Cat is a fun choice that gives you great stats on the cheap, but could die fast to Amber aggro decks that spam characters
Slivers are a powerful and sought-after card type in the game, with Quick Sliver, Galerider Sliver, and Gemhide Sliver being highly coveted