Kris, Susie, and Ralsei have a comprehensive strategy with strong teamwork and supportive skills that enhance their overall performance in battle. Kris can enhance allies' skills, provide significant evasion bonuses, and help increase initiative, allowing them to act faster than their opponents. Susie's Rude Buster has the potential to deal massive damage, especially when combined with Kris's actions, making their offensive output quite formidable. Ralsei acts as both a healer and a tactician, focusing on defense and sustainability with abilities like Dual Heal and Fluffy Guard. On the other hand, while Shopkeeper Temmie can summon additional Temmies and grant them various bonuses, the reliance on maintaining multiple units could be a double-edged sword. If Kris and the team effectively focus their attacks, they can potentially eliminate Temmies quickly, undermining their advantages (like bypassing defenses and stunning). The Deltarune trio's synergy and ability to mitigate damage while boosting their own capabilities ultimately give them the edge to sustain through the encounter and outmaneuver their opponent, leading to their victory.