Mushoku Tensei: Jobless Reincarnation

[Kraco]

"To make that happen, I'd wipe this whole city off the map".. (staff glows, clouds darken and spin around).

He was about to AoE the city.

There's no point trying a spell like that unless you know you can do it.

Flash flooding a city without killing everyone there just creates enemies. Rudy is after eliminating enemies, and he showed no suggestion that he was just after horse dude.

I fully disagree. I'd say his intention was to make the people forget all about the Superd when someone else turned their city in a giant, dirty pool of water. Of course a bunch of people would most likely die due to flooding, but getting hammered by rain, no matter how heavy, will not automatically kill anyone. Even a Japanese person will just get a fever lasting for one or two days.

Edit: Somehow I got the timing of the events mixed in my head. Ruijerd hadn't even revealed himself yet.