Quick! Does something faze you or phase you? Are you going through a phase or a faze?
Faze is a verb → Spiders don’t faze me (I’m not disturbed by spiders.)
Phase has more than one meaning:
As a noun, it means a period of time → I’m going through a Spiderman phase (I’ve been obsessed with Spiderman lately.)
As a verb, it means to stop something in stages → I’m phasing out of comics (I’m in the process of no longer reading comics.)