Marisa the Mindeater

Flying, haste
When Marisa the Mindeater enters the battlefield, gain control of target artifact with
mana cost 1 or less
{u/r}: Each player draws, then discards a card. If
two land cards are discarded this way check-out 1
Abilities of books you control cost {1} less
Witching Hour: If you would draw a card while
your library has no cards in it, you win the game instead.