hey! It depends what engine you're using, but most engines have a center/pivot/origin point(called many different things) you need to adjust!
Viewing post in The DARK Series - Top Down Hero - The Hunter comments
its actully easier moving the sprite sheet a few pixels to the right in gimp (about 8 to 10ish), then cleaning up the side attack animation, by removing a few pixels of the slashing animation so they dont leak into the next frame, instead of keyframing new offsets for each animation in the game engine.