Nami Ability (LoL): Tidecaller's Blessing

Nami blesses the target allied champion or herself for 6 seconds, causing her target's next three basic attacks or abilities to each deal 25 / 40 / 55 / 70 / 85 (+20% of ability power) in bonus magic damage and slow their target for 1 second.

Empowered area-of-effect abilities only deal 33% − 66% of the bonus damage to non-champions (depending on level).