The challenged have the right to refuse a challenge, but if the number of refusals exceeds a certain limit, it would lead to a decrease in their own ranking.
At first glance, this rule seems fairly reasonable and fair.
The black metal high-back chair behind Ronan melted away, retracting beneath his Magic Robe as he took a few steps forward, looking up at the densely packed names and rankings formed by runes in the sky near the Combat Arena.
Already, someone was handing in a Challenge Application Letter to the silver bat Biondini.
Using spiritual power to write down the name of the challenger in the air, the name turned into a stream of light, shooting up towards the high-flying Biondini who, with his mouth slightly open, swallowed each wizard's Name. His jewel-like silver eyes narrowed slightly, like a picky gourmet tasting each dish presented to him.
Ronan withdrew his gaze from the sky's rankings, extended a finger, and calmly wrote a name in the Void in front of him.