In EMA, UB was a reanimation deck that required uncommons to function well
It's no wonder the market reacts positively to Portal to Phyrexia, so expect some sort of price spike in the near future
The Precon List Before we talk upgrades, let's take a look at the stock list to see what we're working with: Sliver Swarm lives up to its name with a complete focus on Slivers: I count 40 sliver creatures in the deck plus 3 cards that can count as slivers like Titan of Littjara, and then 9 more nonland cards that care about slivers
However, in the real game, Time Wizards time-travel shenanigans are more straightforward: Thousand Dragon is a typical Fusion Monster, whereas Dark Sage specifically needs Time Wizards original effect to be called right. This is because Time Wizard, being a part of Joeys deck, has a unique effect that is luck-dependent
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Furthermore, since the effect can be used on the opponent's turn, you can choose his Generaider to hit the opponent while watching the situation