Seth hummed softly to himself, humming the usual tune that he would tap with his fingers as he examined the corpse of the Dwarven Giant. His fingers would have been tapping this tune instead, but they were currently otherwise occupied.
He held a crystalline core in his hand, this one was more manageable at the size of a golf ball, rolling it within his palm and playing with it idly as he thought. He was still low on mana so, while he couldn't fill up an entire core all at once, Seth instead resorted to a trickle charge.
Mana was gently flowing down his arm and into his fingers, causing them to tingle ever so slightly as it exited his fingertips and slowly entered the crystalline core, charging it slowly. It wasn't as effective as the instant charge he gave to the last one, but it meant that he didn't have to sit around waiting nor suffer from any more mana exhaustion.
