Kamigawa block introduced a whole bunch of new Legendary Creatures to the game, including for limited play
[-10] Creatures you control get +2/+2 until end of turn
Another nice feature is that while you can make your picks blazingly fast, theres no time limit
player format works well, players can often be too focused on their own moves to really understand their opponent's strategy
Many spells in your deck are very, very expensive, and if you want to build a similar version without the more expensive cards, there are some substitutes: Azlask, the Swelling Scourge, Ulalek, Fused Atrocity, and Eye of Ugin are vital inclusions in this deck, and two of these can be acquired with the precons
This is also true for Treasure tokens, planeswalkers, and other permanents