Can you combine the miracle cost and overload cost on Cyclonic Rift?
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The short answer
No, you cannot combine them. Per Magic rules, a spell can have only one alternative cost applied. With Lorehold in play, you can cast Cyclonic Rift for via miracle, but this produces the non-overloaded version that returns a single target nonland permanent. To use the overloaded 'return all nonland permanents' mode, you must pay the full .
The cards

Cyclonic Rift
Return target nonland permanent you don't control to its owner's hand.
Overload (You may cast this spell for its overload cost. If you do, change "target" in its text to "each.")

Lorehold, the Historian
Flying, haste
Each instant and sorcery card in your hand has miracle . (You may cast a card for its miracle cost when you draw it if it's the first card you drew this turn.)
At the beginning of each opponent's upkeep, you may discard a card. If you do, draw a card.