The card Instant Burn reads that it burns for 1 damage, duration one. However, it actually burns for 2 damage, duration one.
I believe the instant burn might trigger off of the burn somhow? So it's 1+1. Not sure if this is a bug or not.
Ok, silly question... were talking about the burn on the subsequent turn, not the initial attack value of 2, right?
I believe that's what the op means, and I confirmed it is a 2 damage dot on the subsequent turn, without any additional attachments to either the burner (caster) or the burnee.