Often forgotten - Kill Switch

Let's take a look at a handy little card that is often looked over.  Kill Switch.

With as artifact heavy as Commander has become (especially around here) this little sucker has found it's way into a couple of my decks.  So much hate is reaped from playing this little gem that you can pick up for a little over a dollar on Ebay.

Especially a hammer against those colorless full artifact decks. Shut em down and roll your boys over them while their creatures are all tapped. 

Now while you can't choose to keep this bugger tapped during your untap phase it is relatively cheap to use.  But this does allow you to untap all your artifacts and then you can use up your manarocks before locking them all back down again.

In the end this is one of those nice little cards to have handy in a deck.  Just in case you need it.