A casual glance into a dark corner may be your last.

Killing Glare

Destroy target creature with power X or less.

"Now really, was that the expression you wanted preserved on your face forever?"

Foundations Jumpstart

Gatecrash

The power of the target creature is checked both as you target it and as Killing Glare resolves. If its power is greater than the value chosen for X when Killing Glare tries to resolve, it won't resolve and none of its effects will happen.