Talk:Siege Commander (Season 2012 Mastery)/@comment-5558329-20121001082453

Turrets have base 200 armour. Using the formula A/A+100 this gives 66% dmg reduction from physical damage. Now, if you take Seige Commander that reduces the armour of the turret to 190, which when substitued into the formula gives 65.51724137931034% reduction, or just 65.5% rounded. This means this mastery reduces the effective damage resistance of the turret by .5%. Pathetic really. Say you do 150 damage with your basic attacks: before SC= 150x(100-66)=50 damage. After SC=150x(100-65.5)=51.75 damage, for an overall increase of nearly 2 damage. There are simply better masteries to take.