Answer:
"happy dagger" and "timeless end"
Step-by-step explanation:
The answer to your question would be that the phrases from the passage that are oxymorons are the following ones: "happy dagger" and "timeless end". An oxymoron is a figure of speech in which apparently contradictory ideas appear together. As a dagger is a weapon, it is wear that it appears next to a positive adjective such as "happy".