This is how I play my sentinel and I find it quite fun and viable in all content in the game. Partner class to the fury marauder. Although there are times where players will want you to bring something different, there are lots of times where players will be happy for your raid utility.
0:00 - Introduction to user interface and layout
3:41 - Gearing and stats
6:58 - Utilities
16:46 - Single target rotation option 1
21:26 - Single target rotation option 2 (better)
28:18 - Single target rotation option 3 (best)
29:37 - AoE rotation
34:30 - more tips
40:26 - Defensives
44:01 - Gameplay examples
53:57 - Using StarParse to improve
59:12 - Conclusion
https://www.patreon.com/draemn