Rite of Replication is the focus of this deck, works nicely with Parallel Lives.
Get some cool creatures to enter the battlefield to get their EtB triggers, often doubled by Panharmonicon then hit them with a kicked Rite of Replication
Keep an eye out for other creatures to copy as well; if your opponent is so proud of his best creature, you can be five times prouder than them.
You've got a solid mana base here too, with Axebane Guardian and Overgrown Battlement doing some heavy lifting. Shield Sphere is thrown into the mix for some free boosts to Defender-sourced mana, as well as something early to block with (something that isn't a valuable mana source)
Winning conditions typically include any of the larger creatures, like Inferno Titan and Chancellor of the Forge being copied multiple times for their EtB triggers. Smaller creatures can be copied lethally too, with the help of Warstorm Surge
A really neat trick is to get Temur Ascendancy out, and kick Rite of Replication targeting either a Wall of Blossoms or a Mulldrifter to draw a whole bunch of cards. If you leave 3+ mana remaining, chances are you'll be able to drop an Axebane Guardian or Overgrown Battlement. Seeing as they now have haste, you can start emptying your hand almost as if you had an Omniscience
This deck probably won't do well against any 1v1 match-up; It just requires far too much time and set-pieces to really start its engine. But it's sure as hell fun in multiplayer.