Runic Skin is inversely affected by effects that reduce Galio's magic resistance, such as the Abyssal Scepter or Fiddlesticks's Passive. The magic resistance reduction will reduce Galio's ability power for the duration of the effect. When Galio's magic resistance is brought below 0, he will lose ability power. Ability power has a lower cap of 0.
Due to his natural base 30 magic resistance he will begin the game with at least 15 ability power. With the addition of scaling per-level magic resistance, he will gain ~11 ability power at level 18 or roughly 0.6 ability power per level.
On the other hand, Runic Skin is triggered by his own ability, Bulwark, as well as any other effect that gives him temporary Magic Resist. Casting Bulwark right before another ability will, therefore, increase the impact of that second ability.
Active:Galio grants the target allied champion or himself bonus armor and magic resistance for 4 seconds, and heals himself every time Bulwark's target takes damage, with each heal being 20% weaker than the last for each subsequent instance of damage.
Bulwark is an ally champion-targeted buff ability.
Bulwark has no cast time and does not interrupt Galio's previous orders.
Because Bulwark grants Magic Resistance, when cast on Galio himself it effectively grants him an additional 15 / 22.5 / 30 / 37.5 / 45 Ability Power due to the conversion ratio of Runic Skin.
COST: 70 / 75 / 80 / 85 / 90 mana
COOLDOWN: 13 / 12 / 11 / 10 / 9
Active:Galio unleashes a gust of wind in the target direction, dealing magic damage to enemies hits, and leaving behind a directional draft for 5 seconds which grants allies bonus movement speed when they pass through it.
Allies who are facing the opposite direction of the draft will not receive the movement speed bonus.
Righteous Gust is a multiplicative movement speed bonus; it multiplies all other sources of bonus movement speed by the skill's amount while active.
Idol of Durand
RANGE:600 / 575
COST: 100 mana
COOLDOWN: 150 / 135 / 120
Active:Galio turns into a statue and channels for 2 seconds, halving incoming damage and taunting nearby enemies for the duration, which they cannot mitigate with crowd control reduction. Idol of Durand can't be cancelled by movement commands for the first 0.25 seconds of its duration if it strikes at least one enemy champion.