It can produce white mana instead of green, for a start, which opens up a range of avenues
This version aimed to go huge with Awaken the Woods, rather than trying to push through fragile pump spells like Titanic Growth, which aren't really suited for competitive play
Most of the legends matter stuff is on a handful of underperforming rares though (i.e., Clive's Hideaway, Serah Farron), so dont expect to build around legends specifically
When I cast and copy Pyromancy 101, can I teach it to another one of my creatures
Unfortunately, it was never finished
Szat betrayed the Titans and murdered two of their number before Urza, having anticipated Szat's betrayal, killed him in turn, using Szat's essence to power the soul bombs the Titans used against Phyrexia