When your opponent targets exactly 1 monster you control (and no other cards) for an attack, or with a Spell/Trap effect: Target another monster you control that would be an appropriate target; that attack/Spell/Trap now targets the new target.
I don't know how old the above comment is, but we finally can get this card now
Atem: "I activate Shift! This allows me to switch my monster's monster zone. I added this card to my deck despite cards such as Alien Invader not existing, meaning this card only functions with Duelist Kingdom Labyrinth Wall which I don't run. Countering a card no one but the Paradox Bros run is very important to me!"