Successful Attack Required

Most abilities require damage to trigger, while some simply require a successful attack. (A successful attack is an attack that doesn't miss.) You can tell if an ability only requires a successful attack, as the ability will say "When this champion makes a successful attack..." or "If successful..."

Since these abilities don't require damage, they will "go through" abilities/conditions which reduce or redirect damage (such as Impervious, Pawn, Arrow Eater...). If the ability requires the attack to deal damage, it will say "When this champion successfully damages with... attack" or "If damaged..."

Here are some examples of abilities which only require a successful attack:
 * Sunder
 * Hinder Movement
 * Impatient
 * Knockback
 * Curse
 * Constriction
 * Enrage
 * Barrage
 * Pummel
 * Combo Attack
 * (Stun) despite description