try_to_create_recurring_character_effect

try_to_create_recurring_character_effect = {
	hidden_effect = {
		if = {
			limit = {
				# We want exactly one player.
				calc_true_if = {
					amount = 1
					is_ai = no
					$CHARACTER$ = { is_ai = no }
				}
				# With only a few recurring characters per tourney.
				## Currently, set this to 1 to try and make them more generally memorable.
				### If we start messing with event weight multipliers based on this, then we might want to increase it, so split things up a bit more.
				num_of_relation_activity_recurrer < 1
				NOT = { has_relation_activity_recurrer = $CHARACTER$ }
			}
			set_relation_activity_recurrer = $CHARACTER$
			# Debug stuff.
			## Disabled; decomment it if you want to see who gets grabbed.
			#if = {
				#limit = { is_ai = no }
				#add_to_variable_list = {
					#name = recurring_characters
					#target = $CHARACTER$
				#}
			#}
			#else = {
				#save_temporary_scope_as = ai_temp
				#$CHARACTER$ = {
					#add_to_variable_list = {
						#name = recurring_characters
						#target = scope:ai_temp
					#}
				#}
			#}
		}
	}
}

As written in game/common/scripted_effects/04_dlc_ep2_tournament_effects.txt.