This combo showcases how you can play around/through some of the most popular handtraps. If your opponent drolls you after you add Mutiny, it does absolutely nothing to the rest of the combo and you still end on the full board.

For veiler and imperm you have a counter in Sharvara for every monster effect activated on the field until Yama (Tour Guide, Lacrima, Sequence and Aerial Eater). Then if your opponent veiler/imperms Yama/Sarama it becomes a little tricky, that's why there are two branches in step 16 to show what you can do in those scenarios. In Yama scenario you end on 5 disruptions, while in Sarama scenario you get to potentially 6 disruptions. Both scanrios also gets you follow-up with Engraver and Mutiny in the GY.

Step 17 then continues the combo to show the full board if nothing gets hit with veiler/imperm. In this scenario you end on the full board of up to 9 disruptions and follow-up consisting of Engraver, Shyama and Mutiny all waiting in the GY (same as Tour Guide 1-card combo version 1).