Theres a lot more that goes into this, but getting too far into the nitty gritty comparisons ends up having us look more at the editor as a card maker rather than a whole set editor
Murmuring Mystic I often finding myself cutting this from Izzet spellslinger tokens decks because its so much harder to cast in those shells as a 4-drop, but Murmuring Mystic is kinda cool doing the same kind of job in mono-blue or Azorius in decks like Octavia, Living Thesis, Raff, Weatherlight Stalwart, and my newest obsession, Zethi, Arcane Blademaster
1 Sandsteppe Citadel
We have A LOT of review packets and notes
On top of that, blitz cards may just serve well for sacrifice matters decks
This MTG artifact creature literally prevents you from losing the game, and also says your opponents can't win