Red Brambleback

383.4.g.2. The named part of the condition is fulfilled, but no actual such event occurs. Example: Red Brambleback is a unit that reads in part "Your conquer effects for conquering here trigger an additional time." Reckoner's Arena is a battlefield that reads "When you hold here, activate the conquer effects of units here." The conquer effects that were activated in this way were not the result of a conquer occurring, so they will not trigger an additional time from Red Brambleback's passive ability if it is located there.