Ally Stats Down (味方のうりょくダウンAlly Stats Down) is an Ability that was introduced in Fossil Fighters: Frontier. It lowers the Attack, Defense and Speed of a Vivosaur's allies by 6.25% as long as the Vivosaur possessing it remains in battle. The effects of Ally Stats Down stack, so a Vivosaur with two allies possessing Ally Stats Down will have its stats lowered by 12.5%. Ally Stats Down functions similarly to negative Support Effects in the DS games. A related Ability is Ally Stats Up, which instead boosts the stats of allies.