Altair Brotherhood Mentor Kelsien the Plague

“<div class="SecretLair"><strong> Assassin's Creed: Lethal Legends</strong></div><br>Vigilance, haste <br>Altaïr, Brotherhood Mentor gets +1/+1 for each experience counter you have. <br>T: Altaïr deals 1 damage to target creature you don’t control. When that creature dies this turn, you get an experience counter.”