You take 3 and the Enforcer dies. Since the Goblin is removed from combat, your Enforcer doesn't deal any dmg and thus you don't gain life, correct?
Island
Done
Spidey: 13
Hand: 6
In Play:
(T,U) Forest x2
(T) Plains
(U) Swamp
(U,U) Mt x2
(U,U,U) Island x3
(T) Watchwolf (4/4 due to ctr) *1...