I just want to add to what Caxoxd said:
Shiny has more HP than Normal, and it has Water Pledge instead of Water Pulse, and Water Pledge's stunning-time is longer than Water Pulse, which should give u the possibility to use either Rain Dance/Leaf Storm or heal Ludi with Synthesis. Normal Ludi also has these AoE moves, so I don't see how normal is better than Shiny.
If you go to hunt Ground or Rock, you shouldn't have a problem. If you want to hunt Fire-type pokemon, then I understand what you mean, however Ludicolo is not meant to hunt Fire-type pokemon in a hardcore way