Slag and Burn

The Siege Archer throws a 5-tile area of slag onto the ground which explodes immediately, doing normal break damage plus explosion damage, shown below. It also leaves randomly placed burning coals on unoccupied tiles. If targeting an empty tile, coals always appear on the center tile first. Units (not just enemies) who walk over the burning coals take 1 strength damage.

Rank 1: Break damage + 1 strength damage + up to 2 coals

Rank 2: Break damage + 1 strength damage + 1 armor damage + up to 3 coals

Rank 3: Break damage + 2 strength damage + 1 armor damage+ up to 4 coals