Strength of Life

Strength of Life is Bloom's Believix power which she can use to make people believe in magic or overcome their weaknesses. She can also use this to heal somebody due to the Dragon's Flame's healing power.

Winx Club

 * Season 4 Episode 8 - Used to heal and make Mr. Batson to believe in fairies and magic.
 * Season 4 Episode 9 - Used to heal Roxy.
 * Season 4 Episode 11 - Used along with Gem of Mind to make the bank robbers believe in magic.
 * Season 4 Episode 13 - Used to calm all the people present at the station and make them believe in magic.
 * Season 4 Episode 15 - Used along with Spirit of Courage and Bright Heart to convince the hearts of the people in Gardenia Park.

Comics

 * Issue 87 - Used to heal Cindy.

Trivia

 * In the Italian dub, it is called Force of Life.
 * When used in Issue 87 of the comic series, Bloom never says the name of the spell while using it to heal Cindy. Rather, it is simply implied as she uses it passively.
 * In Perle, Bloom uses a unnamed spell described as a healing power of Believix, that could have been the Strength of Life. First to give Ligea courage to talk with her sister Vires, and in the end to heal Ligea after Bloom hit her accidentally with the Fire Arrow.