Special Summon 1 "Jurrac Meteor" from your Extra Deck (this is treated as a Synchro Summon)
You can only use this effect of "Photon Orbital" once per turn
Entropic Uprising supports this heavily by running tons of Wheels (Runehorn Hellkite, Dragon Mage, Wheel of Fate, Windfall, Ancient Excavation, Whispering Madness) and then a bunch of ways to take advantage of all those discarded cards / filled graveyards with stuff that reward you for your opponents discarding (Nath of the Gilt-Leaf, Sangromancer, Waste Not) or for having filled graveyards (Guiltfeeder, Spellheart Chimera, Worm Harvest, Ghastly Conscription)
Simple, and with offspring, these grow the board to difficult to manage levels quickly
Some attacks also have special effects listed beneath the name that may help you deal extra damage, so dont forget to activate them
Be open to their feedback and use it to improve your deck