Initially intended for cubing, this provides a random selection from a field of your choosing, separated by "|" in the field using {{rand-alg:(field name)}}.
Note: the separator can be changed to other characters in the init.py file, if you would like to, or you can include multiple separators and it will separate on every instance of any of those characters.
For example, if I had a field called "scrambles", and in the field, I put this text: "B' U F U' R2 U' R2 U R2 F' B|U' L' U R U' B2 U' B2 U B2 R' L|U2 F' U B U' L2 U' L2 U L2 F B'|U R' U L U' F2 U' F2 U F2 R L'", if I edit the card so it shows {{rand-alg:scrambles}}, it will choose one of those each time the card is loaded.
This is recreated from these addons because they don't seem to work with new versions of anki: