WOW. The card looks fantastic until you consider that Double Strike triggers his ability TWICE. Then it looks like the insane card Evan warned us all about. The implications range across formats. Legacy decks now have 8 Goblin Lackeys and Standard Goblins got the most powerful effect the tribe has seen in years, all alongside the reprinting of Siege-Gang Commander and the printing of Goblin Chieftan. Sure, it'll get Bolted and sometimes it'll get hit with an Essence Scatter, there's no Daze, no Force of Will, no Broken Ambitions nor is there even a Cryptic Command available to slow the roll of the Goblin hordes.
It doesn't take a financial genius to tell you "get yours ASAP", nor is it exactly a secret that this is the kind of card that can drastically boost the price of the cards around it. Pick up your Chieftans and Siege-Gangs at FNM tonight and pray that not everyone's seen this spoiler yet.
Oh, and it's Mythic. Remember what we said about Time Warp? Yeah, get your playset at the pre-release people.