Spell shield

Not to be confused with Magic shield

 Spell shields refer to one of several effects that have the capacity to negate hostile abilities from applying to the recipient. This can vary per case with other included mechanisms such as  on-hit effects and subsequent targeting ( Bouncing).

General

• Spell Shields negate effects coming from champion abilities,  monsters and items, with the exception of summoner spells and persistent damage from  AoE DoT and passive  DoT effects.
• Spell Shields take priority over  health shields and conditional  crowd control immunity ( Black Shield, Void Shift, etc.).
• Multiple active Spell Shields over a single unit will break simultaneously. This is intentional.

Single ability

The following will block one enemy ability, with precedence given to the ability spell shield. If the ability is of an enhanced basic attack (e.g. Harsh Lesson, Power Fist) the spell shield will not block the damage of it, but only any additional effect it might have, like  crowd control. In the case of Harsh Lesson, the spell shield breaks even if the attack doesn't have any crowd control effect with it.

Champion abilities

• Sivir's Spell Shield
• Nocturne's Shroud of Darkness

Items

• Banshee's Veil
• Edge of Night