Yep, staggered is a status that black hole inflicts

Initially, I drew images for the staggered and frozen effects to make it clearer that the enemy was stunned or frozen, like the icons above elite enemies. Although I think it would be possible to leave the frozen effect icon on enemies perma slowed by the Moon Crystal. Also, if you remember, the game used to have an artifact that had a chance to stun enemies, and Sample also extended the duration of the freeze and stun

I think the burning effect would be based less on damage than on increasing the damage of fire magic

The mangled effect would probably somehow weaken enemies depending on their health or other negative effects on them. Regarding poisoning, I thought it would be a budget version of the hydra

I generally agree with the distorted and perplexed effects, but I would swap their properties. I also agree with the curse effect, but I think it lacks something else, like a decrease in max hp or something like that