That's 3
Done - does the Sword "fall off" of the Idol when it reverts to a plain Artifact?
Spidey: 16
Hand: 1
Library: 27
Battlefied:
(T,T,T,U,U) Swamp x5
(T,U) Plains x2
(U) Glint Hawk Idol (Whenever another artifact ETB under my control, I may have ~ become a 2/2 Bird artifact creature...