...which are only EFFECTIVE against
wraiths and daywalkers...
The Big Bang Theory Season 3, Episode 5
one of the most EFFECTIVE
techniques for moving on
The Big Bang Theory Season 7, Episode 20
Ricin.
It's an extremely EFFECTIVE poison.
Breaking Bad Season 2, Episode 1
that saying "pew, pew, pew"
isn't as EFFECTIVE
The Big Bang Theory Season 5, Episode 19
It's really EFFECTIVE.
Westworld Season 2, Episode 6