Kill Switch - Workshop mirror Sideboard?

[covetousrat]

With the rise of Workshop base deck, notably aggro Mud and Stax, you will probably expected to face against a good number of mirrors. The weakness of monobrown MUD is its limitation during the sideboarded games as compared to Stax running red. I do see a great number of Duplicant, Sculpting steel, etc. I wish to propose on the hidden gem Kill Switch a junk dollar rare.

Card type: Artifact

Casting cost: 3

Oracle text: 2, Tap: Tap all other artifacts. They don't untap during their controllers' untap steps for as long as Kill Switch remains tapped.

It only affects artifacts that are tapped by Kill switch. You do not untap your own artifacts that are tapped by it. (Just realized this) T_T

You can cast it using a workshop and tap it during your end step. Your opponent skips their artifact untap step. And you start your turn with all your artifacts untapped and bash with your aggros. Do sideboard out your null rods if your playing any. Finally, I'm no fan of Workshop probably of a hater of it. Do give your opinions.

Cheers.

[M.Solymossy]

I've talked about this YEARS ago, but the honest answer is there really isn't many artifacts that you want to tap of theirs.  Just play more threats, and beat them in the race.

[credmond]

The card has interesting applications for Shop vs Highlander deck. When the card is in play you can stop vault+key combo (but not Tezz/vault combo) since they generally have to give you back your turn in order to untap key. You can also tap down a tinker robot and/or their artifact mana to keep mana denial pressure on. You would need your own key though to untap kill switch to escape gumming yourself up. Interesting but too narrow I think.

[BruiZar]

Just for the sake of reference, Tezzeret untaps artifacts.

[credmond]

Yup, that's why I specified in my post that it stops vault+key but not Tezz+vault.

When you are playing shops, the highlander player will be good deal more likely to threaten to assemble vault+key than Tezz/vault so kill switch would still be a capable answer. Its just not as good an answer as say null rod + sculpting steel.

[Twaun007]

Kill Switch doesn't really switch over to kill when Null Rods are out.

I would much rather run Ensnaring Bridge against MUD. They literally have zero outs. 

[pot pie man]

Kill Switch doesn't really switch over to kill when Null Rods are out.

I would much rather run Ensnaring Bridge against MUD. They literally have zero outs. 

Having had ensnaring bridge broken out on me, It is more or less the precise answer to the workshop mirror. Killswitch is cute, but I'm skeptical of anything so gimmicky, and anything requiring mana not from a workshop, especially if playing through null rod's and or/chalices hurting your mana.