With strong synergies and support across nearly every set, human commanders offer something for every playstyle
With Yuriko, the Tiger's Shadow , your whole deal is striking with low-cost, evasive creatures, then launching your commander into play with ninjitsu, and reaping the rewards: plenty of card draw, and plenty of pain
Why are they expensive
There is no limitation to this, and the player can pick any villain character their opponent has in play and immediately banish them, meaning an extremely buffed-up villain can be done away with in a single action
This Commander is a flier that can gain a huge power boost the more Offspring and other 1/1 Creatures like tokens you manage to field
An Azorius 2/4 for three mana, Kotori states that each vehicle under its owner's control has Crew 2