well, i know it will be hard if you're ambushed constantly, but your objective for now is to acquire Remains, and level it up to high level until it has good regen aura (if it doesnt have it on the start, i think not, i dont remember) , and you can make 20 rituals in defence with the tree, you wont get your creatures dead... your try will always be at 1,4k VE (at max) when it dies