If you could only cast one spell for the rest of the game, what would it be?
Saviors of Kamigawa is the final expansion in the Kamigawa block that introduced the setting where Japanese-influenced creature types, such as spirits, Samurai, Kitsune and more took center stage. The set introduced the Epic mechanic, which forbids the player who cast it from casting spells for the rest of the game, but you got a copy of that spell every turn.
Look for these great cards:
Oboro, Palace in the Clouds
Sakashima the Imposter
Mikokoro, Center of the Sea
Miren, the Moaning Well
Pithing Needle
And More!