You wont have issues dealing with the likes of Lightning Bolt or Fatal Push, but others like Rakdos's Return may be an issue
Commander / EDH / Tribal MTG Decks a deck built around a single creature type
It's enjoyable, but it'd be even more so if there were just a few more competitive cards - or fewer cards that have nothing to do with Inventors
The floor on Mystic Confluence is drawing three cardsessentially a Jace's Ingenuitywhile the ceiling is a three-for-one when you can Mana Leak an important spell, bounce one of your opponent's creatures (or even your own Snapcaster Mage), and draw a card along the way for good measure
However, Carth has two incredible abilities that make him a real powerhouse
Mana dorks, cheap creatures with high power, and token generators are all great ways to increase your total power on the board