Complex sentence: Sasame suddenly appears and tells Sakura to put a talisman on the knife and when she does, the blade glows a gold color and she has no problem cutting the string, which gives off a bunch of electrical jolts when broken and shocks both Naruto and Kabuto.
Split into simpler sentences: Sasame suddenly appears and tells Sakura to put a talisman on the knife. Sakura does so, and when she does, the blade glows a gold color and she has no problem cutting the string, which gives off a bunch of electrical jolts when broken and shocks both Naruto and Kabuto.