Clever Concealment will allow you to phase out as many nonland permanents as you like, provided they can be targeted by the spell
Log quantities and every variant
However, dont forget that using this card requires you to discard two other cards
Elven Ambush and Elvish Promenade for going wide with lots of bodies Prowess of the Fair, Moldervine Reclamation and Poison-Tip Archer for when your elves die Timberwatch Elf and End-Raze Forerunners for big damage turns The deck has a variety of powerful elves, and for those that havent collected or built with the tribe before, there are some solid pickups which will slot into whatever way you end up building the deck like Elvish Archdruid
So if it works at all, it can be used against you
For example, if one of the exiled cards is a sorcery, you can cast it only during your main phase while the stack is empty