Catastrophe
Sun boosts Water. Rain boosts Fire.
2 species 2 as main 0 as innate 6 battle AI weight, −2 to 10 — 6 is the untouched default
In detail
In Sun, Water moves gain the damage boost they receive from rain. In Rain, Fire moves gain the damage boost they receive from sun.
Types that carry it
2 species Dragon 1 Fire 1 Water 1
As a main ability
2 speciesSelectable — one of up to three, and only one is active.