Another great choice is Craterhoof Behemoth which gives your team a massive +X/+X boost and trample from your creature count, making your Elf swarm lethal
From the homepage, you can put in a card and find any combos that use it, or you can use the advanced search to look for combos by anything from a specific outcome, the colour identity of your commander, or even how many cards are needed to pull it off
Nahiri, the Harbinger A Cube staple, Nahiri, the Harbinger offers a great source of looting and much more
World Map Rating: 2/10 There are probably no lands good enough that its worth putting 3 mana into World Map, but Traveler's Amulet is a perfectly reasonable way to fix your mana and so is this
The idea is to use ramp effects to power out your towns, triggering landfall effects along the way to grow your board, and closing out with The Wandering Minstrels activated ability
Then you'll add that mana too - this is an essential for Spellslinger brews since it will trigger your Guttersnipes and such too, unlike dorks that recur