In total, how many words are there using the combination requested?You can go with up to 2 entries on this page.
What's the biggest word you can assemble using this list?The longest word one can assemble from this list is 'itzebu', and it is made up of 6 characters.
What is the highest score you could get in Scrabble from this list of words that start with 'i' and contain 'tz'?As there is just 2 combinations possible, your only viable word is 'itzebu' scoring 17 points.