One of the changes we can foresee is the arrival of the Fairy type
The piece is divided in two, with the tranquil blues on the right reflecting Urzas peaceful past, or perhaps his dreams for Dominarias future, while the harsh, burning reds on the left reflect the lengths hes gone to achieve said dreams, blending with images of the people hes lost, and the atrocities hes committed along the way
Then you can tap creatures you control to help pay that cost
For example the most expensive Pokmon card ever, the Pikachu Illustrator card, only had dozens of copies printed
It still rocks the HeartGold & SoulSilver-style artwork, which shouldnt be surprising since the Call of Legends set includes reprinted versions of several HGSS cards
Nullmage Shepherd gives you a repeatable version that is often worth committing a handful of elves to