Castle and Drawbridge: A Sudoku Puzzle Playing Defence?

Today's Puzzle:

Another incredible puzzle that's intricately interlinked. Once you put it all together, it only takes the odd digit here and there to open that drawbridge and allow you to storm the castle with a solve.

Link to Play Along:

Castle and Drawbridge by Tingo http://tinyurl.com/SudokuSleuthCastleDrawbridge

Rules:

Normal Sudoku Rules Apply

Digits in killer cages must sum to the small total in the top left corner of the cage. Digits may not repeat in cages.

Green lines are German Whispers lines. Adjacent digits along the line must differ in value by at least 5.

Pink lines are Renban lines. Digits along the line are consecutive in any order.

Cells joined by X must sum to 10. Not all Xs are given.

Cells joined by white dots are consecutive in value. Cells joined by black dots have values in a ratio of 2:1. Not all dots are given.