Maybe Gyre Sage ? Would be very good with biomancer and is also an elf. I also think you should ramp in Craterhoof Behemoth because he ends games.

with all that ramp, why not Primordial Hydra ?

@BaceJeleren I tried Gyre Sage , it is slow. I like the combo of Verdant Haven with Arbor Elf better. I took it out to get better ramp and more utility such as card:Yeva, Nature's Herald.

@JokerWx13 Done.

what about Golgari Decoy ? imagine you have that and a bunch of your bombs out, if you swing with all, the opponent is forced to block only the decoy :P it'll end games lol

@Drogon360 Makes sense. I think there is an elf in RTR that gives all tapped creatures hexproof, so that might be a decent sideboard card or something.

@JokerWx13 Nah its 4 mana for a 2/2 and its utility isn't super useful. The bombs usually win already.

@BaceJeleren. Oak Street Innkeeper Yep. That's a sideboard card.

I was one of your opponents last night

@mr_cjg You were the Token Walkers?

ya

Hinterland Harbor ?

@MICKIMNah. They aren't forests. Verdant Haven provides blue.

Consider Beck//Call for filling up your battlefield and finding a behemoth.