When Explosive Wagon is destroyed at that instant does it's +1 damage still apply??
Just want to do a sanity check, my gut feeling says no since its destroyed and card is already there.
I agree with your gut instinct. The card is destroyed so it's static effects are gone.
That's how I played it in this situation here: https://greaterthangames.com/forum/topic/heroes-0-silver-gulch-1883-3164
There was some talk about how tactically I could have done it better, there was no discussion about how I had done it incorrectly.