Like the Devilian royal family's 'Annihilation', the house of greed possessed what could be called their 'Greeds'.
Owen's 'greed' allowed him to rob his opponents of their physical strength, weakening them while gaining more strength. He can also do the same to the opponent's speed, but not at the same time with their strength.
There was also a limit on how much strength or speed he can take from his opponent.
Arthur noticed something was wrong immediately, his body felt heavier, and his attacks also became slightly slower.
It was as if his strength and speed were being reduced alternately at regular intervals.
"I see, so that's your 'greed' huh?"
Arthur remembered having his physical strength sapped by Zach too, however, Zach didn't maintain the ability, switching it for the invisibility he used for most of the fight.
'He most likely fed Zach a rune with a similar ability to his 'greed' to test its compatibility.'
