Seven letter words change one or two letter to make a new word

blaster

A good one by your side’s better than any hokey religions or ancient weapons, I’ve heard.

stabled

blessed

classed

delouse

Blouses

Delouse needed another e, plus the o and u to go from classed.

WIP: Blouses

blushed

shuffle

muffler

fluffer

Ruffles
(have ridges)

fuckers (sorry, couldn’t resist)

fluster

cluster

recused

excused

tuxedos

studies

sustain

abstain