A great and refreshing take on the Might and Magic genre.
Art Direction: I like the overall style, it's coherent and with a lot of personality. Everything is quite readable and nice to look at. My only issue is the combo effect during battles which can be a bit distracting.
Controls/UI: UI is clear and there's a lot of information in the compendium that is great to read but can also be a bit overwhelming at the start. Controls are responsive and perfect for this kind of game, I'd love to have the possibility to use the UP arrow (together with Q and E) to rotate a block.
Game Loop: game loop is the usual M&M, the player explores a map, gather resources/artifact, capture points of interest and fight enemies... With a twist: the combat is TETRIS! I love the concept and the execution is great, the skills are fun to use and most enemies can mess you up in different ways (rotating a block at the last second, making a part of it disappear, destroying a part of a placed line, etc.).
Audio: music can get a bit repetitive, but overall the sound design works.
I was a sucker for M&M's games when I was a kid, so this game brought back a lot of memories, but what really sold me was the Tetris-styled combat: it's really fun and opens to a lot of strategies!
Great job!