The following will cancel Ace in the Hole's channel (mana expenditure is not compensated):.Stacks will still be generated towards Headshot when attacking them.The empowered attack will not trigger against wards.Because Headshot stacks are generated on-attack, Runaan's Hurricane bolts will not generate stacks towards Headshot.PENDING FOR TEST: Runaan's Hurricane's Wind's Fury, is special cased to search targets with the increased range as well.They trigger on-attack effects (including stacking Headshot). Since Caitlyn's Art and Sustainability Update, Ability-granted Headshots are the same as the original Headshot override attack, though what lets them cast at high range is still relatively special.The basic attack triggering Headshot can critically strike, but Headshot's damage remains unchanged if it does.Headshot is a single instance of damage, thus does not trigger Amumu's Tantrum's or Warden's Mail's passives twice.The full damage of Headshot applies life steal.The bonus from Headshot is added after the critical strike is rolled. Only the ordinary 100% attack damage portion of the attack can critically strike.The bonus range from Rapid Firecannon will not have any effect during trap and net extended Headshot attacks.5 seconds of her previous attack windup completing.