User blog comment:YourPrivateNightmare/Hail the hourglass!/@comment-5331854-20130915215945/@comment-5331854-20130916100755

The 1 game where it would be useful is the one where you have the situation of the 1.5 seconds making a difference between life and death. Unless you have psychic powers, this "approved strategy" is practically useless outside of the vacuum of theories, ironically making GA even more of a better choice.

When the ADC has some pretty good AP-scalings, Zhonyas may get used in 2 out of 100 games. The only problem is missing MR, which either makes you more vulnerable to roaming midlane/AP-Jungler when not paying for 2 defensive slots or an overall weaker Carry when paying for 2 defensive slots, because AP won't rock the Field of Justice even with good scalings on an ADC.