There are only so many five-drops you can play, though, so its not an easy puzzle
It is an expensive card at 4 mana, but in Commander, 4 mana is fairly easy to assemble quickly, and the format has numerous sacrifice and token generators to run wild with
This could be highlighting certain Planes (such as a cube that uses cards from all sets that take place in Ravinca and/or cards that depict the plane), characters within the game, being a tribute to a specific Standard environment, or be limited to cards with specific printings, such as retro frames and white borders
Buyer demand and label prestige differ by company
Lass does just that going first, an opening hand with Lass can effectively neutralize an opponent before they even get a chance to play
Again, the timing is off, but having the evasion and some extra enters abilities makes up for it