Let me start by showing you what this card began as: Destroy two target creatures that share a color
Other options in regards to Gruul dragons matter legendary creatures seem quite limited, and the fact Vrondiss, Rage of Ancients and Klauth, Unrivaled Ancient were both in a precon not too long ago likely means they wont show up either
Every Mane Six
SIDEBOARD GUIDE MONO GREEN: Out: 1xCling to Dust, 2xCensor, 1xKaya, Orzhov Usurper, 3xWandering Emperor 1xSupreme Verdict In: 3xAether Gust, 3xThoughtseize, 1xDovins Veto, 1xGo Blank On the draw: -2 Power Word Kill, +2 Portable Hole BR MIDRANGE: Out: 1xKaya, Orzhov Usurper, 2xAbsorb, 1xBloodchiefs Thirst, 1xSupreme Verdict, 1xPlains In: 3xAether Gust, 3xGo Blank UW CONTROL: Out: 4xFatal Push, 2xPower Word Kill, 3xSupreme Verdict In: 2xMalevolent Hermit, 3xGo Blank, 3xThoughtseize, 1xDovins Veto IZZET PHOENIX: Out: 1xBloodchiefs Thirst, 1xFatal push, 3xSupreme Verdict, 4xThe Wandering Emperor In: 2xMalevolent Hermit, 3xGo Blank, 3xThoughtseize, 1xDovins Veto SPRITS: Out: 1xCling to Dust, 2xDovins Veto, 2xAbsorb, 1xKaya, Orzhov Usurper, 1xTeferi, Hero of Dominaria In: 2xMalevolent Hermit, 2xPortable Hole, 3xThoughtseize RW HEROIC: Out: 1xCling to Dust, 4xAbsorb, 2xCensor, 1xMemory Deluge In: 3xAether gust, 3xThoughtseize, 2xPortable Hole Well thats it for me, folks

While Vandalblast is a crime if you paid to cast it, when you overload it, you lose the target and so it is no longer a crime