What type of numbers make the best assassins?

http://i3.kym-cdn.com/photos/images/original/000/286/687/1ff.jpg

I Call upon THEE

http://i.imgur.com/XYdIbQ8.png

http://media.urbandictionary.com/image/page/lold-44854.jpg

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What type of numbers make the best Vaynes?

Irrational

EDIT: What type of numbers make the best Galios?

Imaginary

Except IV, IV is the worst adc