What are Evos? Big Fish Updated February 06, 2017 19:10 What are Evos? Evos are used to ascend heroes. Celestial Evos are rarer than standard Evos. Evos can be combined into new Evos. Related articles How do I combine & squash Evos? What are Gems? What is Elixir of Life? What are Hero Tokens? What are Runes?