How do items stack? Like let's say I have 2 Madred's Razors. They have a 15% chance to do 500 dmg on a creep. If i have 2 Madred's Razors would it be a 30% chance or 15% + 15% of 85?
+DMG/ATK SPD/AP/MANA/HP/etc: all stack
For example: BF Swords will stack till you can't fit any more.
Unique Passive: only one of these item's passive effects will work
For example: Only one Infinity Edge will increase your critical strike damage
Passive: every item of this type will stack.
For example: Phantom Dancer effects will all stack till you can't fit any more.
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