mtg cards like curiosity Its an enchantment Curiosity (A25) - The List

Unless someone in your playgroup is going out of their way to be a problem with a Celestial Kirin deck, this isnt a card you should consider for most builds

As for spells to flash in, you can do so much with a surprise Narset, Parter of Veils in response to a Brainstorm, an unexpected Elesh Norn, Grand Cenobite when an opponent swings out at you, or a sudden The One Ring when somebody tries to take you out

Effectively you turn the game 2 Lore in your favor

They are now planning a coup to replace the Imperials with a government that will have its citizens' interest at heart

Give it double-strike for extra ways to burn through your deck, before dropping a Thassa's Oracle or Laboratory Maniac to close out the game