User blog comment:Rowtuh/WTF Mode Tier List by NA-rowtuh/@comment-4080931-20120415035935

Wait a second... what about LeBlanc?

She stacks 5 AAs and a Deathcap. Uses Sigil of Silence. Casts Mimic, no mana cost, 40% bonus damage.

Then she casts Mimic again. And again. And again. And again. At no cost.

What if Mimic actually increased it's previous version of Mimic's damage by 40%? So your second Mimic dealt 196% of SoS's damage, then your third Mimic dealt 274%, fourth 384%, fifth Mimic 538%...