If your graveyard is sufficiently stocked, its entirely possible that once you draw Recurring Nightmare, it is the only spell youll want to play for the rest of the game
I had completely forgotten that the Sidar Kondo / Jeska player was looking to murder us with that triple damage ability
You may pay optional additional costs, such as kicker, and if there are any mandatory additional costs, those must be paid to cast the spell
Then you can overwrite literally anything
That alone isn't enough to accept the damage from tapping this for mana, but a few minor synergies can push it over the edge
I love the idea of gating progress for the first pack behind, say, having to have three characters questing on the same turn