Double-Strike Explosion (BT26-027) - Ultimate Advent

[Activate:Battle] [Limit 1] If your Leader is a red card with both "Son Goku : GT" and "Android 18", draw 2 cards and discard 2 cards from your hand : Choose up to 1 of your red "Son Goku : GT" cards and i it gets ets +15000 power for the battle. Additionally, if you have a red "Android 18" card with 20000 power or more in play, the chosen card gets +10000 power for the battle.