The only thingbesides the obvioustying the whole thing together is that they all feel like core pieces in different combo/synergy decks
The Vampire creature either functions as a Blind Obedience or, if your opponents really need to have their early mana rocks enter untapped, the Conqueror threatens to make a ton of tokens
Persistent Petitioners If theres one thing that Persistent Petitioners excels at, its consistency
The chart provided above from Imgur happens to be one of the more detailed ones, and, for the most part, its a pretty good representation of a commonly accepted Commander power level scale
Looking at storage solutions, I weigh them in terms of: Capacity Durability Expandability Ease of use and locating cards Look and appeal Security Total Price Lets take binders as an example
Next up are Soundwave, Sonic Spy/Soundwave, Superior Captain and Slicer, Hired Muscle/Slicer, High-Speed Antagonist