White-Black-Red is the Mardu, a ruthless army that pushes through damage with sheer numbers and unparalleled effectiveness
When the stars align, he streams Magic (but the stars align way less often than hed like).
(Subtypes include but are absolutely not limited to: Plains, Equipment, Aura, Arcane, Jace, Curse, Urza's, Ulamog's, etc.) The ability that defines Subgoyf's power and toughness applies in all zones, not just the battlefield
Since the most dangerous weenie creatures in Standard are white and green, Self-Inflicted Wound will be a valuable sideboard tool, if not a main-deck consideration
The nice thing about kicker is that its an additional cost rather than an alternate cost
The art is incredible, and arguably highlights the set's art deco motifs better than the actual Art Deco frame