In modern there is a deck that uses Eldritch Evolution and Allosaurus Rider to get early Griselbrands. There is a lot of card disadvantage there. In vntage we have Skyshroud Cutter. This does not get Griselbrand, but there are still good options for a win con.
This is the best card to get agaist most blue lists and may work against some Forge Shops lists.
I like this guy against Dredge. Fetching a Glacial Chasm and Strip mine, before setting up a Dark Depth win is good.
I just wanted to let people know this is out here and encourage people to mess around with it. this is on par with flash hulk, and we have preordain now. I also think serum powder is worth trying.
Full disclosure this is a weird card that not everybody will appreciate.
If you can reliably kill your opponents token it can ramp up and put on some pressure.
If you can't kill the token, you can still block it and be ahead. In a worst case scenario the combat math still improves for you. I think I would rather play this than Garruk, Relentless .
You could always check out "The Riddler" circa 2004 if you are into the mask/dreadnaught thing ;). I hear it was kinda decent back in the day, lol.
Deck list for reference.