The Fire Heart.
Sam looked at the large orb with a smile. The only reason resemblance it had to an actual heart is that it is also beating like an actual heart. The rhythm of it just felt like an actual heartbeat.
He dove into the crater and touched the fire heart.
His palm skin seared slightly. Instead of feeling hurt, he smiled. It indicates how pure the fire elemental energy in this fire heart is. Sam's natural resistance to the elements is very high because of his bloodline to think even he wouldn't be able to completely resist, this is a first for him.
With a wave of his hand, the whole fire heart disappeared along with a large chunk of earth from under his foot. The crater was doubled in size at least.
Sam disappeared without any delay.
Meanwhile, the fire heart was placed in an empty divine dimension fragment. The dimension fragment didn't have any natural elemental affinity.