Widespread Dud

[Zazubat]

Sounds pretty evil, maybe it isn't all that useful, as most Decks can just Xyz them away, so you would need to set a MST, and waste another card, or kill one of them in another way. Still, if your opponent Heavy Storms, fun times are ahead.

Continuous Trap Card

 

Select 2 face-up Attack Position monsters on the field. When any of the selected monsters are removed from the field, destroy this card. When this card is destroyed, destroy the selected monster(s).

[Premier Alexander Romanov]

In the right deck, this can be quite insidious.

Chain this in response to your opponent's boss monster attacking a weenie defender you have.
Your opponent can't move on your weenie without taking out his ace card.

Meaning you don't have to worry about that boss for a little while.
 

[Medivh]

Excellent when used with Quillbolt Hedgehog and MST. 

[Airride]

It's a really neat card. I wish it could be better, but it's quite good if you pull it off well.

[Blake]

[quote name="Gendo Ikari" post="6223121" timestamp="1371449277"]In the right deck, this can be quite insidious. Chain this in response to your opponent's boss monster attacking a weenie defender you have. Your opponent can't move on your weenie without taking out his ace card. Meaning you don't have to worry about that boss for a little while.  [/quote] That doesn't cause a replay. All it does is make them suicide and you -1d yourself to kill their boss, instead of using Mirror Foce/D-Prison/something that doesn't -1.

[Thomas★Zero]

I remember back when it first came out when people just said this card + MST for the fastest use for this where you be wiping out 2 monsters (on either field based on choice) with this.