In general, I think mercenaries are fun and have a good base, but I feel they are missing a bit of work, a punch to make them more fun to use.
1: I am ok with the choice to remove the ability to give them items if we have other choices that matter, but at the moment you only have 4 skill points and nothing more, would like a bit more options to customize them.
2: Its a bit sad there is no way to use them in a party other than the reinforcement option. Would love to see some items that allow you to spawn in your mercenary and build around them a bit more.
3: The reinforcement is a cool mechanic, really hope you expand more on that, Only having one skill option and they don’t even benefit from passives make most reinforcement skills a bit underwhelming.
Really hope you will change so the passives also affect the reinforcement skill. That would make more of them a bit more useful.