As Jake Henderson wrote in December last year, The problem with Standard isnt that its too expensive now compared to previous years or that there are too many problem cards, its that the investment in a Standard deck doesnt have the same longevity it once had. The underlying reason is that one of WotC's recent trends has been the increase of supplemental products
The exhaust mechanic on Bitter Work modifies the ability to be a one-time activation
Can You Have Help Shuffling
If your opponent can't block flying creatures and ends up taking the damage, you get to take an extra turn
Yavimaya is here on technicality, since it doesn't actually have a green color identity and can be played in any Commander deck
Basic and Evolution decks, single-Prize or multi-Prize, stall, various kinds of lock theres a lot of variety to this format that makes it very entertaining