No doubt theyre incredibly powerful, allowing you to cheat big creatures into play and ramp, but there are plenty of commanders that let you do this already
On creature-heavy decks you should run fewer board wipes because you dont want to clear your own board too often (about 2-3 seem enough, unless they are one-sided where you can add more without hurting your own strategy) while on creature-light decks you need more (about 4-5 is a good number)
While there arent many cards that command such a high price, a select few do
The standard play there was to have Luxray use Bright Look to bring up whatever the LuxChomp player wanted and then Garchomp to pew pew whatever it so chooses
If a card(s) leaves the Extra Deck (except during the Damage Step): You can target 1 "Fallen of Albaz", or 1 monster that mentions it, in your GY, except "Guiding Quem, the Virtuous"
The music is dynamic as well, changing when a player pulls out a particularly powerful creature or a significant dip in life points occurs