Galio Ability (LoL): Shield of Durand

Passive: Upon learning Shield of Durand or after not taking damage for 12 seconds, Galio gains Anti-Magic Bulwark.

Anti-Magic Bulwark: Gain a 8 / 9.75 / 11.5 / 13.25 / 15% of maximum health shield that absorbs magic damage.

First Cast: Galio begins to charge for up to 3 seconds, slowing himself by 15%, reducing incoming magic damage by 20 / 25 / 30 / 35 / 40% (+8% per 100 bonus magic resistance) (+5% per 100 ability power), reducing incoming physical damage by half that amount, and increasing Shield of Durand's taunt radius over the duration. Galio cannot use Flash while channeling Shield of Durand.

Second Cast: Galio taunts all nearby enemies for 0.5-1.5 seconds and deals between 20 / 35 / 50 / 65 / 80 (+30% of ability power) and 60 / 105 / 150 / 195 / 240 (+90% of ability power) magic damage to them (based on charge time), while also refreshing the damage reduction for 2 seconds.