Aelinyue, Prophesied Oracle

Nonland cards in your hand have Suspend 1—{x} Where X is equal to that cards mana value.

Pay 2 life: Copy target card in exile with a time counter on it, you may cast the copy.

Whenever you remove a time counter from a card in exile you may investigate.

"Time doesn't move like you think. Each action creates branching trees of time, fractals that weave an intricate web of time. Each strand is a different outcome, and each
one is real."