While there may be enough easter eggs and references to keep diehard fans happy (or annoyed because their faves haven't been included), for the most part, it can all be ignored
Then, if you have a Prince or King in residence, you will pay one less lore to play a character
The deck is built around tokens so theres plenty of included synergies, but theres also the plentiful tokenmaking found in the Commander format itself
So even though the way these different products exist within the lore of the game is very similar (they dont), theyre not a part of the same branch of Magic
The most useful thing to use O'aka for is to either remove lore counters from Sagas, keeping them from finishing and sacrificing themselves, or removing finality counters
Courser of Kruphix This approach harnesses green's quintessential ramp strategies, turning each land drop into a potential card draw