the a coupon code for the Swords & Wizardry Appreciation Day
Full disclosure: blogs and web sites that mention this are put in a drawing for some prizes too. But even if I had no hope of profiting by this post, I’d still say you should check out S&W. The rules and many add-ons can be downloaded for free from the publisher.
Swords & Wizardry is one of the simpler retro-clones that basically tries to recreate the original 1974-1976 D&D game. I own a “White Box” set of S&W that I got in trade with another blogger some time back, and I keep wanting to run it, but have yet to find the right opportunity.
People are offering various content for S&W on their blogs as part of S&W Appreciation Day. My offering is just a simple monster, the Black Hodag:
The Black Hodag
Armor Class: 2 
Hit Dice: 10
Attacks: Claw/Claw/Bite or Gore (d6/d6/d10 or 2d6)
Special: Wallcrawling, charge attack, surprise
The Black Hodag is dungeon-dwelling variant of the common Forest Hodag — mammalian but with plate-like spines on its back, about 7 feet long and 2 1/2 feet tall at the shoulder. Black Hodags are covered with shaggy fur, and while they can change the color of their fur, they are usually black.
Black Hodags can walk along walls and ceilings like spiders, at their normal movement rate. They normally stalk their prey from ceilings or walls, and surprise on a 1-5 due to their stealth and chameleon-like ability to blend into their surroundings, changing colors and even texture. They charge into combat (+2 to hit, goring for 4d6 damage and victims must save or be knocked prone; if they miss, they will continue moving their full speed past the target and cannot turn or avoid hazards); if they have the advantage of surprise, they will try to carry off a victim to eat later (they can grab a surprised opponent with a successful bite attack).