The text of the power of Come and Get It reads:
You pull the target up to 2 squares, but only if it can end the pull adjacent to you. If the target is adjacent to you after the pull, it takes 1[W] damage.
According to the forum post here: http://community.wizards.com/content/forum-topic/3103741 it seems like some enhancement and feat bonuses should apply.
I have two specific bonus questions though:
- Typed damage (e.g. cold) added by various bits of equipment (e.g. Gloves of Ice) that say "+2 to damage rolls" - I assume RAW interpretation here is that it counts, but just double checking.
- Damage from Iron Armbands of Power. The wording here is not clear if the damage from Come and Get It is melee damage. Here is the item text:
Gain a +4 item bonus to melee damage rolls