Lethe, High Chronologist

When Lethe, High Chronologist enters the battlefield, you may return target land you
control to its owners hand. If you do, copy the
next instant or sorcery spell you cast this turn.
You may choose new targets for the copy.
Landfall—Whenever a land enters the battlefield
under your control, create a clue token.
She scours the land, seeking ways to put time back in
its place.