Talk:Turret/@comment-91.155.85.78-20130111201406/@comment-4893919-20130225140055

Armor reduces physical damage (any source, red numbers indicating damage), magic resist reduces magic damage (any source, purple numbers indicating damage). True damage cannot be reduced (white numbers indicating damage). There are also some skills that can reduce specific type of damage (but not true) bya % or a flat nuber, but they are unique for a champion.

Turrets deal full physical damage. Conclusion: buy armor (and HP) vs them.