Fantasy Tens of Billions of Subsidies: a Thin Dog Turns into a Three-Headed Hell Dog

Lin Feng travels through the fantasy world. Get [Ten Billion Subsidy Critical Hit System] at the beginning As long as you give the opportunity to others, you can get a subsidy return, and it is very likely that you will get a critical hit of tens of billions! Bite! Give a thin dog as a gift, trigger a critical hit with tens of billions of subsidies, and return the subsidy to the three-headed hell dog! [Ding! Give a piece of scrap bone as a gift, trigger a critical hit with tens of billions of subsidies, and return the subsidy to the Supreme Bone of the Dragon Emperor! [Ding! Gift...]