Smitefire.com, despite having the reputation of having terrible guides (There are actually really good guides) has some really nice code, a bit similar to Wikipedia's, but better.

There's my Chaac guide to show just two of the codes. (Selfish self promotion too :P)

For example, doing
Code:
[[Shifter's Shield]]
will result it being a link with a mini picture of it, and if you hover over it it will show the stats, picture, and cost, etc.

Also, there's
Code:
[icon=storm call size=100]
which will also be a link that will show the stats when you hover on it, but it is a picture. The size is probably in pixels.