This is a very niche flicker card in this regard, but it doesn't have to be if included in the right deck
Crimson Vow is a hell of a set for Commander, and I havent even covered the spicier tribal cards in the precons
You pull the top off and there are your cards, but needs your own labels Expandability : If sources can be found, they do sit well together
Your Blue-Eyes is neat, but in this age and day 8 mana for an 8/6 Flying Menace is pretty 'meh', Baneslayer is a joke in Commander, 8 drops see play in Commander if anywhere, and I feel like this isn't impactful enough for a 'play and wait' card
At the beginning of each end step, create X 1/1 black Rat creature tokens with "This token gets +1/+1 for each other Rat you control," where X is the number of creatures that were exiled under your opponents' control this turn
Arcee, Sharpshooter / Arcee, Acrobatic Coupe Arcee, Acrobatic Coupe has a heroic-like ability that stores up counters, then converts back to Arcee, Sharpshooter who then filters those counters into damage