It's more like a modern gameboy era Dragon Quest Monsters, tbh.
... which is kinda' like a fusion between pokemon and roguelikes that's not a mystery dungeon style game, yes.
E: Well, that with a side of "Rules Lawyering, Breaking the Game Edition". One of the bigger features the game has is that every single individual monster type has a unique special ability. Some are similar (particularly within families), but none are identical. Checking, there's at least
536 of them. And most of them aren't exactly trivial, "Here, have some extra stats" stuff.
Starter rapturous ghoul, which gives extra damage based on its speed stat.
Starter abyssal spectre, which sets Attack, Int, Defense, and Speed, of anything it lands a hit on, equal to the target's lowest stat.
Sphinx justicar, which sets the entire team to a single class at the start of the fight. The trick here is that the change also completely removes class weaknesses from my entire party, in exchange for making it strong against just one for a fight.
Crypt bat, which whacks anything any of my other party members attacks for reduced damage.
Vicious wolpertinger, which casts a random sorcery spell any time it attacks or is attacked. It's also set up with a summoning spell, which one of my personal class based perks lets it summon for free at the start of a fight, filling my empty sixth slot with a random, stat buffed, nature creature.
And... most of these are fairly straightforward. There's also sorts of other interactions, with specific types of monsters, with specific sorts of actions, with deaths, with particular status effects, and on, and on, and on. And then there's spell gems (which lets your monsters cast spells and can have random properties -- including proc chance on hit or being hit), artifacts (which can have, among other things, traits themselves, effectively giving the monster wearing it two special abilities), runes (which are always on modifiers to various things), consumables (including meals that have effect for multiple dungeon levels), various temporary in-dungeon modifiers, mechanics changes unique to your class specific perks, probably stuff I'm forgetting or haven't encountered yet... there's just a whole honking load of stuff to tweak around. And did I mention there's a breeding system? Because there is! Also every single enemy in the game has access to exactly what you do, save the personal class unique perks (I think, anyway). Game's friggin' great, and 2 is a definite and pretty substantial upgrade over the first.