ha ha your drawing land

Look at the top five cards of target player's library. Put any number of them on the bottom of that library in any order and the rest on top of the library in any order.

Target player mills half their library, rounded down.

Exile all cards from target player's graveyard other than basic land cards. For each card exiled this way, search that player's library for all cards with the same name as that card and exile them. Then that player shuffles.