As for the Commander Legends decks, both commanders are relevant new cards for the format
Mishras Workshop is another card that can be considered for its ease of powering out your artifact creature threats, but I wouldnt want more than 1-2 in this specific deck, because the colored mana requirements are so heavy for our other threats and spells
Conversely, if a permanent is sacrificed during the resolution of a spell or ability, that spell or ability will finish resolving before Carmen, Cruel Skymarcher's second ability is put onto the stack
The ALS Association Details 1919 University Ave
Dominate the battlefield with these world-ending Eldrazi that defy conventional magic and keep opponents on their toes
Another thing that jumped out at me is that a lot of slivers have abilities that cost mana, and if we get too many in play it can start to become a burden