Scavenger I think covers that, and for any and all creatures. Kill a rock elemental, higher chance to get iron or something.


I've edited and posted my CS for reference of how the skills should ideally look. 
Do it your own way just so long as we all know whats goin' on. 

[i]IF THERE IS A SKILL YOU WANT BUT IS NOT LISTED, FEEL FREE TO MAKE YOUR OWN.[/i]
(must be approved by LadyTale / Myself)