If you take Luck of Heroes as a Paladin at character creation, you will lose the feat entirely upon taking an oath to become a full-fledged Paladin.
Maybe will be fixed at some point, but because it's part of the system, I strongly suggest to not take this feat as a Paladin.
Well, damn. Can this warning be added to the documentation under paladins? Here's the most salient thread. (https://www.efupw.com/forums/index.php?topic=64971.msg445526#msg445526)
Can a DM fix characters with this issue for effected PCs? This particular feat makes a good deal of sense for paladin types anyways, not to mention...
[hide]... there's a whole paladin code in the module for heroism, making it especially on-point to add to the thematic element for fairy-tale-hero paladins in EFU.[/hide]
Could change the paladins to get strong soul instead of luck of heroes (mostly since LOH is a more primary choice for players) and the results are similar.