Rimuru used Diablo as a major piece to overthrow Falmuth's king and install their own. He's hugely successful and even comes back to Tempest with enough time to defend it from the Crusader army.

Diablo's loyalty to Rimuru shapes his strategic actions and solidifies the Jura Tempest Federation's influence. Diablo, a Primordial demon, defies norms by working tirelessly in the background to ...

Aspect Of the Tempest can only be used by the Druid class. In Diablo 4, the strength of affixes are randomly generated within a range of values. This is shown in [parenthesis] in tooltip above.