Desperate Sacrifice [Cross Force]

[Activate Main] Place 1 "Piccolo" with "Master's Teachings" from your Battle Area into its owner's Drop: Choose up to 1 of your cards with [Ki] that has "Master's Teachings" in its special traits and "Son Gohan" in its card name, and it can't be removed from the Battle Area by your opponent's skills until the end of your opponent's next turn.

([Ki]: An energy marker placed under a card.)