I am trying out Elves that were in Zendikar block that did not quite make the long term cut in Modern but are fun to play, along with Explore and Harrow.
Here are two games showing how Joraga Treespeaker and Mul Daya Channelers work. Joraga Treespeaker becomes a mana dork for two Forests in one boost of two mana, but seldom remains on the board to be boosted much further. Mul Daya Channelers gets +3/+3 when there is a creature at the top of your library, and that can be quite useful. Both cards are tricky to play. I am glad I tried them out, but would not put them in my steady casual Modern elves deck.