Causal
strong strength
Narrative Connection
How these two moments in the story relate
From
Doctor shatters Wrack’s power-source gem
S20E20
·
Enlightenment Part 4
To
Doctor foils Wrack’s escape and exposes conspiracy
S20E20
·
Enlightenment Part 4
Why These Connect
The narrative assertion
"The Black Guardian's instability after the tiara's destruction directly leads to the Doctor's confrontation with Wrack and the overboard fall of Wrack and Mansell. The Guardian's weakened state makes this counter-move possible, turning the tide against Wrack."
About Causal Connections
A directly causes B. The first event sets forces in motion that produce the second. These are the load-bearing connections of plot--remove one and the story structure collapses.