Response: If you have lost a challenge this phase, kneel Sunspear Tourney Grounds to cancel a triggered character ability. (A character ability or the effects of an event triggered instead if you control more unique characters than each opponent.)
If I have more unique characters in play than each opponent, then I can cancel a triggered event or a triggered character ability, right?
Because first I was wondering if in this case I could cancel a character ability (no matter if it is triggered or passive) or an effect of an event triggered.