If you do choose not to pay, but no longer control Child of Gaea, you cannot sacrifice. It will remain on the battlefield under its current controller’s control.
04-10-2004
wotc
You choose whether to pay or not on resolution. If not, then you sacrifice Child of Gaea. You can choose to not pay even if you no longer control Child of Gaea on resolution.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.