I have not tested with synergy. Most of the stuff in this pack doesn't change gameplay and shouldn't conflict. You should follow synergy's installation priority.

Or will that conflict?

What's the priority to Synergy Add Ons Collection?

Major update. Some balance tweaks, aesthetics upgrade and added stuff. Hopefully this solves the loading issue. Doesn't crash anymore on my test runs.

Troubleshooting:
If you have multiple .mod files in your mlpfim folder and are running into consistency issues; please reinstall the mod manually. That is: unsubscribe, delete the mlpfim folder, and then resubscribe. That should solve the problem.

Collections and modpacks are similar but different. Modpacks are made so that we can load beyond the arbitrary limit of 10, which Torchlight 2 is allowed to load. If you relied just on collections you'll quickly run out of mod slots.

Oh and yes it's silly. Just like how Pinkie Pie is silly.