Terrain: dig pits skill

Skill 'diggings'.

• This is a passive skill, it works automatically.

Every time someone digs with a shovel, a pit is left in the ground. A few pits are just scenery, but on ground dug up by three pits or more you can easily stumble and lose a moment. Rain fills open pits with puddles.

Each place holds only so much: after a handful of lucky finds the spot runs dry. The pits fill back in one by one, roughly every twenty minutes after the last dig, and the ground's riches return with them. Go and find a fresher spot.