Enduring Renewal and Blinking Spirit were great for combos, but Call to Arms, Caribou Range, General Jarkeld and Seraph were great on their own and Justice, Drought and Order of the Sacred Torch were a blessing for sideboards everywhere
Whereas, cards like Hades - Lord of the Underworld, Snow White - Well Wisher, Lady Tremaine - Wicked Stepmother, Nick Wilde - Wily Fox, or even Mufasa - Betrayed Leader I would consider passive card draw engines, but serve different purposes when used correctly
1 Hearth Elemental
Giant Trap Door Spider probably doesnt need to grab stuff out of the air when it can just Postmates dinner right to its stoop
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