Its -2 creates two 1/1 flying Thopters that have haste until end of turn
The entire deck is based around turning land drops into noncombat damage, and Valakut Exploration is just another way to do that
It's a basic artwork, but its a popular card from a collectors perspective and won't be around forever so I'd definitely recommend grabbing one now before they stop re-releasing Hidden Fates tins
Every powerful strategy has its downsides
On top of that, it also makes a Clue token each time, so youre also getting extra card draw when you need it
And thats okay, since the people who enjoy playing Bedlam Reveler have probably never uttered the words just one of these is good enough for me. While oil counters are all the rage right now, in the context of Commander its not likely that youll care much that the counters on Vindictive Flamestoker are oily