Whenever I need to create a handmade card and I have a block about what to use or how to create, I have a tried and true Stampin' Up! stamp set that never lets me down...Lovely As A Tree.
This set has been in the Stampin' Up! annual catalog for years and is probably the most versatile set I own. It can work for any occasion including "Praying for You" cards and sympathy cards. (The sentiment is from Thoughts and Prayers (wood, clear). And, I can't tell you how many Christmas cards I've made using this set.
So, if you need one set that is going to be a "go-to" tool that can work for anything with a change of the sentiment, go with the tried and true Lovely as a Tree stamp set from Stampin' Up! found here in the online store in both wood mount and clear mount.