The combo this deck is playing, outside of mana generators and Paradox Engine, is Greenbelt Rampager + Servant of the Conduit; which allows you to get infinate cast triggers and thereby infinate untaps for your other mana creatures. It works by having Servant and Paradox Engine on the battlefield, less than two energy in your reserve and use a mana to cast Rampager. This then lets you use servant to pay the energy generated by Rampager to make a new mana and cast it again, untapping the servant and creating another energy, creating an infinate loop.
If you combine this with Lifecrafter's Bestiary and another mana creatures, you now have infinate mana of any color, to spend on creatures and your entire deck in hand. From there, you play Quicksmith Rebel targeting one of your artifacts and tap/untap for the win.
The deck works quite well without the combo; you get out either a Paradox Engine or a Lifecrafter's Bestiary (or preferebly both) and continue generating mana or drawing cards off cast triggers, digging in the deck after creatures using Duskwatch and beating down. Sooner or later you will draw the combo and thereby the deck but Ii have won quite a few of my test games with a beatdown plan.
I have a sidebord plan for controlling decks in a playset of Hope of Ghirapur and a Burn from Within to protect my going off from counterspells and instant speed removal by attacking; sacking the copter and comboing or simply continuing to draw and cast creatures in my second mainphase, generating the mana needed to draw and play Burn from Within to win the game.
A interaction to be aware of:
Nissa, Voice of Zendikar + Rishkar, Peema Renegade giving your team the ability to tap for mana.