Bater: Life down probably won't be affected by PlusPower.  I also doubt
that it will be affected by Defender, Invisible Wall, etc. I'm not
really 'in the loop' but after looking at the balance of the TCG, I
think that the Apprentice Translation of Sabrina's Kadabra would need
errata.  This is what I think the attack will say:

Life Down: Flip a coin. If heads, put damage counters on the defending
pokemon until it has 10 HP remaining.  This attack's damage is not
affected by weakness, resistance, pokemon powers, or any trainer cards
in play.

You are welcome to your own opinions, but if you think about this, it
does make the most sense, as Pluspower and Sabrina's ESP would make this
card practically unbeatable.

My e-mail, hmm....I don't really think this is necessary, I agree with
the people who say post your response instead of sending it to one
person.

PS: Before you do post a reply, please don't make yourself look stupid.
I said the attack's DAMAGE. I didn't say that Sabrina's ESP didn't
affect it, as it probably will (which would be the best use for the card
IMO.)

That will be all, for now...