Big Welcome and Woes are once again both wonderful here as they can potentially trigger multiple monsters of yours to give you extra resources to fight back with and return the game to a more neutral state all off of one flip
The double-faced cards from Zendikar Rising like Silundi Vision are already pretty amazing but get much more value in this deck, since if you play them as lands early in the game, you can always pick them up later with a Moonfolk activation if you need the spell side
Cramorant [Lost Origin] can attack for free when there are four cards in the Lost Zone, Mirage Gate can accelerate Energy once you have seven in the Lost Zone, and Sableye unlocks Lost Mine at ten cards in the Lost Zone
Imoti gives cascade to spells with mana value 6 or greater, which is especially powerful in Commander where you have access to efficient mana acceleration
Please understand it beforehand
5 is pushing it, but shouldn't prove to be terribly cloggy