Take the 2.
Untap, upkeep, Draw, attack with my guys for 4... responses? Taking it?
Spiderman: 3
Hand: 2
Library: 30
In play:
(U,U) Watery Grave x2 (B/U Ravnica Dual)
(U,U,U,U) Underground Sea x4 (B/U Dual)
(U) Island
(U) Icy Manipulator (1, T: Tap target land, creature, or artifact)
(T)...