One-Star Ball, Prologue (BT27-011) [History of Z]

Product Details

[Auto] If "Omega Shenron, Climactic Battle" is in play in your Unison Area : When this card in a Unison Area is placed into its owner's Drop, draw 1 card.
[+2] [Activate:Main] Choose up to 1 of your opponent's Battle Cards and it gets-10000 power for the turn.