Forum:Monsters that make attack blocks in pairs.

I am just curious about what monster cards do and don't make a position where either no monster on the field can be attacked or the 2(/3) same monsters cannot be attacked. Examples I am aware of include...

2* Solar Flare Dragon 2* Decoyroid 2* Marauding Captain 2* Harpies Pet Baby Dragon 2* Any 2 monsters equipped with Ring of Magnetism.

I'm sure there are other combinations like this out there. Any information on rulings and ways to determine locks like this would be appreciated. Also any other examples would also be helpful. Thanks Adam Gough 20:03, 8 January 2009 (UTC)