User blog comment:Crimson Storm Mich/Future Units Preview v2/@comment-30462510-20170322150923/@comment-31529105-20170324031941

Unless you grind a fair amount before the boss of the 1st map, you will want to train your earth element so that Lin is useable for the boss fight. Deimos might be able to reduce the boss's damage a lot, but if not, you sill NEED tye natural elemental mitigation earth provides against thunder.