@SpecialProjectY I agree, the monsters definitely are for once terrifying in this world. Even a lowly goblin that's usually cannon fodder needs a number of adults to take it down. It's probably because it's a bit more underdeveloped where humans don't have proper ways to handle magical creatures in this world, well at least until MC discovers how to properly use magic.
As for earth / water manipulation it likely needs a different methodology (not just shooting magic orbs at it) as otherwise those fishes in their lake would've made a scene when they excrete magical orbs when doing courting rituals and the same goes for magical creatures who's probably constantly excreting magical energy in land / water.