I find a good way to utilize Ugin's Nexus is to imprint it on Prototype Portal. Then after it gets exiled and you get another turn, you just make another copy and do it again.

Timelord-Planeswalker > that is a wicked combination of cards and immensely powerful....in fact, I don't think I own one. It is one of those cards that both has synergy with this deck and deconstructs it .Using the blink on this card would enable me to cast a ton of artifacts, and re-use them over and over again. However...it would cost me my graveyard, since the artifact spells are exiled, and that would destroy the synergy with Sharuum. However, in a Sydri, Galvanic Genius deck this would be a bomb.

GobboE Yeah I see what you mean about messing up Sharuum the Hegemon's flow, I didn't think of that at first. I can definitely see it working better in a Sydri, Galvanic Genius deck, I've seen similar strategies with Prototype Portal. My friend uses it in combination with Mindslaver and basically ends up playing Magic with himself.

Timelord-Planeswalker: Mindslaver is one of those cards I don't frequently use, like Iona, Shield of Emeria.While powerful, they are not much fun to play with, or against: I feel they are just too disrupting. Yes you win the game, but as you said, you basically end up playing with yourself...(boy, does this sentence sound weird)