Untap, upkeep, Draw
Attack with Slayer for naught
Guardian Idol
Done
Spidey: 9
Hand: 2
Library: 20
Battlefield:
(U,U) Plains x2
(T,T,U,U,U,U) Swamp x6
(T) Guardian Idol (~ ETB Tapped. T: Add 1 to my mana pool.; 2: ~ becomes a 2/2 Golem artifact creature ueot)
(T) Dauthi Slayer (2/3 due to...