The control package is rock solid too, with counterspells like Force of Will, Disallow, Counterpoint, and Unwind pulling double duty as protection and damage triggers
For example, if an effect exiles a modal double-faced card whose front face is an instant and returns it to the battlefield, it remains in exile because an instant can't be put onto the battlefield
Skrelvs Hive Making a creature token each turn
The shattered glass cards are only available in The Brothers War collector boosters
Since its cost reduction scales so quickly, basically any spell-focused deck can get value out of this card
Not all of Garys stuff is easily available these days, but its definitely worth reading