Rune 0 is equivalent to buying the bottom of GAS. If the gas price of Big Pie is high, the price of this rune will increase. Rune 0 has been hit recently. The GAS cannot go down to 3. I guess when the dealer hits enough goods, he will pull the price up. Then the GAS of Big Pie Chain will be raised at the same time. Rune 0 is equivalent to buying the bottom of GAS. If the gas price of Big Pie is high, the price of this rune will increase.