The Kal's performance in the fight seemed to change Adrin's impression of Fena Kef's pit fights.
Adrin changed his mind about the Kal's after seeing them fight.
The end was hastened by a man who made other Muslim invaders seem like pussy  the Mongol Timur the Lame, the  barbarous and bloody Tamburlaine,  later written about by Elizabethan playwright Christopher Marlowe.