Solved
Create list of leads that have been merged in SFDC
I recently did a mass duplicate merge in SFDC using RingLead. I wanted to create a smart list that identified all the leads that were impacted that day. Since there is a line item in the activity log that says it had merge activity I figured there must be way to get all of them. But so far i can't figure it out. There's no attribute in the "Data Value Changed" filter nor an Activity Type filter. Suggestions? Here's an example of the activity log of a record that was impacted - I'd love to be able to say "tell me all those that had activity type of Merge Leads on 12/23/14":

