Words with 'ixt' at the start and 's' at the end

What's the highest number of points you could get in Scrabble using this list of words with 'ixt' at the start and 's' at the end?
As there is only a single word available, the only option you can go for is 'ixtles' for a score of 13 points.

What is the max number of words one can assemble using words that start with 'ixt' and end with 's'?
Only a single word has been found 😢