If I win a challenge with Jaqen and a second character but then remove the second character from play before triggering Jaqen, for example via Tyrion Lannister (LoCR) by returning a Clansman to hand to raise claim, can I then trigger Jaqen for winning the claim alone? I'd have thought not, as he didn't WIN the claim alone but I'd like to clarify.
Reaction: After Jaqen H'ghar enters play, place a Valar Morghulis token on up to 3 different unique characters. If Jaqen H'ghar leaves play, discard those tokens from play.
Reaction: After you win a challenge in which Jaqen H'ghar is attacking alone, choose and kill a character with a Valar Morghulis token.