The Mana Base The mana base is your standard tri-color Commander mana base
Ancestral Visions is a lovely little card, the drawback perfectly balanced to make it fair, flavourful and widely playable
In fact, between Incubation and Gyruda, youre just incredibly unlikely to be without your Thassa if you really want her on the battlefield (and you really do)
Focus on the best sliver for each buff you want, cut the rest, and replace them with tutors like Vampiric Tutor, Demonic Tutor, Bring to Light, and Wargate
Expert Q&A Tips If you arent able to make your own proxy cards, just write the name and ability of the card youre proxying on a basic land card
Yawgmoth's Bargain is surprisingly different to Necropotence despite its obvious similarities, it is less onerous on black requirement yet much more mana intensive to get on line