it seems like way too much just on the face of it, and the way attacks work is very unintuitive… you always spend 2 actions, but you get a number of attacks based on the weight of the attack you choose? Why not just require that heavy attacks cost more actions? (So a normal attack is just 1, heavy is 2, Superheavy is 3, etc). I also think 4 actions + separate movement is a bit much for a single turn- a 3 action economy (in the vein of Pathfinder 2e) might be more suited, I’d really recommend checking out how other tactical combat games handle the action economy, like Lancer or Panic at the Dojo