Care of a good luck plant???
Good luck plant seems sick..
Certified GKH Gardening Expert
There are several plants that go by this name. If you can include its proper name, then I can be of more assistance.
In the meantime, I will include an article for the most common plant with this name: https://www.gardeningknowhow.com/houseplants/lucky-bamboo/lucky-bamboo-rotting.htm