The Wood-Giant's Body
Eisen got started with creating the Golem Core for the Wood-Giant shortly after he finished the 40 meter tall base, which was just laying on the ground while propped up with the help of some of the roots still scattered throughout the area.
First things first, Eisen created the crystal base my mixing mana crystals with different other types of gems. This core itself would just be maybe 20% too small, while also having the regular shape of the heart that Eisen wanted to create. The layer outside of it would mainly be for protection against external attacks in any way. It was even more important than usual to do that this time around, because Eisen wasn't going to just form a regular golem core, but glassblow one with an extra ingredient.