In Earthgift Shrine, when you're on the floor which is kinda like a beach, look for trees. If you see a group of three, go in the direction of the one in the middle. For single trees, ignore them and continue whereyou're going. I'm not sure of this but that's how I escaped from that floor.

Use the blue curtain to shield.

To get heavy attackers select these characters warrior,thief,red mage,and monk.
P.S make sure the monk uses his hand or he does not do much damage

When in the beginnign pick these three people

White mage
Black mage
Warrior

It will make life much easier trust me