This is something of an experimental build. Epigonen already provides a lot of versatility and consistency. Having a copy of Emergency Teleport in hand, while running PSY-Framegear Gamma allows for one to go an extensive combo so the have a decent starting hand consisting of Union Hanger, an ABC piece, or some other combination. This combo relies on one going into Coral Dragon and then into Baroness. By popping a summoned Platinum Gadget with Baroness, you can then special summon Gold Gadget to summon another ABC monster from your hand to go into the like of either Verte or I:P. If you start with Epigonen, as well, you can end up with both Verte and I:P, allowing for you to summon Destroy Phoenix Enforcer which you can then use to pop Verte, itself. I typically detest bloated ABC fields which stop Dragon Buster from tagging out which is why I prefer running DPE rather than Dragoon here. Besides, Baroness has the capability to negate by itself.
I'm also running Mystic Mine here since the combination of Coral Dragon, Baroness, Dragon Buster, and DPE should give you plentiful means to pop it should you be forced to give it to your opponent as a result of Set Rotation.
Still, I should once again make it clear that this ABC build is extremely experimental and is constantly being adjusted. The number of soft garnets in the deck is room for concern so I'm not sure if having more than forty cards in the main deck is necessarily a bad thing but do have other variations of this which run less than forty-two cards in the main deck.