Then you consider how it makes Cradle immune to Wasteland and unaffected by Blood Moon
If Darigaaz would die, instead exile it with three egg counters on it
Both decks want to radically alter their own life totals to make big spells much cheaper to cast, which includes game-ending, high-cost creatures and X spells that scale well in the late game
Once you reach the phase of the game where you can afford to do multiple things per turn, you need card draw to ensure you keep having things to do (Circle of Power, Fight On!, Travel the Overworld) or at least cards which can be used multiple times (flashback spells, Ring of the Lucii, Shambling Cieth, Relentless X-ATM092)
While the power level doesnt seem overly high, duplicating a spell can be game-swinging, and being able to always have that ability was deemed too strong for Commander
The decks include commander and monster pairs that work together to enable more powerful abilities and attacks