sentences:  The Grou Dragon helped Kouga summon his armor and Gōten to fight at his full potential while engaging in a clash of ideals if saving lives is more important than destroying Horrors.Kouga almost lost to him, but Rei stepped in to assist him.Kouga thought he lost the fight because he had help, but the Grou Dragon said that if Rei lend his power to Kouga, then that's also part of his power.