Bastionbreaker

Shaped Charge: Dealing Ability damage to a champion or epic monster deals an additional (30 + 150% lethality) true damage.

Sabotage: Taking down a champion within 3 seconds of damaging them grants Sabotage for 90 seconds. While you have Sabotage, your next attack against an epic monster or turret deals an additional (300 + 2500% lethality) true damage over 3 seconds.