Marley, Loyal Guardian

Partner with Michaela, of the Rising Sun (When
this creature enters the battlefield, target player
may put Michaela, of the Rising Sun into their
hand from their library, then shuffle.)
Haste, First Strike, Vigilance, Menace
When Marley, Loyal Guardian attacks, summon
two 1/1 squirrel creature tokens. If, at the
beginning of your upkeep, you control 25 or
more squirrel tokens, you win the game.