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Pokemon XCOM
It's a normal Pokemon game with normal trainers and a normal storyline, but you can have six Pokemon on the field at the same time, and they move around on square grids of pseudo-randomly generated terrain, taking turns hiding behind trees and rocks and walls to increase defense and evasion, or moving into flanking positions to increase attack and accuracy.
I haven't played Mario + Rabbids, but I assume that they figured out how to convince Nintendo that this gameplay can be kid-friendly and normie-friendly.