Im sorry to say that you will get crushed playing that list.
Treelords are just not good, the dmg output on a unbracketed treelord is on average 4dmg on a unit with 4+ save.
The 2 TLA is the biggest drawback since you cant summon 2 wyldwoods with them, the warscroll ability is once per battle NOT once per unit per battle
Therefor the buff on TL, TLA and Durthu from oakenbrow is just not enough
Ive tried a LotC list a few times and never have i gotten to use the 2+ d3 dmg, it looks nice but TL(A) just die when they get in combat, especially if u get dubble turned
Hope this helped