That's 3
Detainment Spell on the Evil Twin
Done
Spidey: 19
Hand: 0
Library: 26
Battlefield:
(T,T) Swamp x2
(T,T,T,T) Plains x4
CoP: Green (1: The next time a green source of my choice would deal dmg to me this turn, prevent that dmg)
Detainment Spell (Enchanted creature's activated...