"Maybe..." Gustav face lit up with a look of realisation, "I have two theories,"
("...") The system waited for Gustav to speak.
"First, my Yarki is just too weak, so it could only do that much," Gustav voiced out the obvious part first.
"Second, My Yarki is very potent, but against higher level creatures and beings, it would deplete very fast and only have dominance over them for only a short duration," Gustav explained with a contemplative expression.
("Hmm... Now that you mention it, these two theories do make sense,") The system agreed with Gustav's thinking for the first time.
"But then I still need to keep making use of it to confirm my speculations," Gustav added as he turned around to stare at the border behind.
Gustav decided to head home for now since energy inside the Yarki had run out.
It was the weekend, so by the time Gustav arrived home, it was already evening.