Theres a lot of possibilities
The dark imagery feels powerful and the energy is infectious
Also, the jaw-dropping 180 HP (200 HP with Giant Cape) is stellar
While recent tips suggest that we wont see any Urza land reprints, the possibility of what we could see is endless
Just take a look at these examples between printed cards I made using Photoshop (left, no overlay) and InDesign (right, with overlay): Now you may not need it for your own cards, and thats OK
The characteristic/iconic splits for each color are as follows: Iconic in Iconic Masters refers to the iconic creature types for each color, not the usual English definition of iconic. A number of development diaries leading up to the set explained this divergence, but most Magic players dont engage with that sort of content