Swift Assassin Ninja

[I Hate Snatch Steal]

 

If your opponent controls more monsters then you do, you can normal summon this card with 1 tribute. Once during each of your opponent's turns: you can discard 1 card; after the current chain resolves,  you conduct a Battle Phase during which only this card can attack and it cannot attack directly. When that Battle Phase ends, the opponent's turn continues as normal.

 

Rulings for a special battle phase do exist:

http://yugioh.wikia.com/wiki/Card_Rulings:Last_Turn

 

Additional Rulings:

- During the special battle phase, it is treated as your turn and your Battle Phase for card effect purposes, though this doesn't count as an additional turn for cards like swords of revealing light.

- When the additional battle phase ends, the opponents turn's current phase 'continues' (it doesn't restart). This is important for cards that activate effects at the start of a phase like rose tentacles.

[Bognortown]

Nice card picture! 

[I Hate Snatch Steal]

bump for want of reviews