You instants and sorcery spells you cast during your turn cost

less.
To solve — Cast three or more instant or sorcery spells during your turn.
(If unsolved, solve at the beginning of your end step.)
Solved — You may look at the top card of your library any time, and cast instant or sorcery spells from the top of your library during your turn.
Rerun

(Transform Wizard's Isolation and uncover a Msytery. Activate this ability only if Wizard's Isolation is solved)
Not likely to use this specific design, but testing rewind mechanic. Modal dfc attempting to utilize Cases to represent episodes while also creating a mechanic that evokes a television episode rerun.