A possible concise summary is:
The video is about the deadliest combinations of SCPs that could cause havoc, destruction, or horror. It lists 15 pairs of SCPs that have some common traits, abilities, or interests that make them work well together or enhance each other's powers. Some examples are SCP-096 and SCP-035, SCP-173 and SCP-268, and SCP-507 and SCP-2935. The video ends by asking the viewers for their opinions and suggestions, and promoting other videos from SCP Explained.
Here are the key facts extracted from the text:
1. SCP-096 and SCP-035 are a deadly combination of indestructible strength and intelligence.
2. SCP-106 and SCP-303 can trap and torture their victims by blocking their escape routes.
3. SCP-049 and SCP-1765 are both self-proclaimed scientists who conduct twisted experiments on humans.
4. SCP-173 and SCP-268 are an unstoppable killing machine that nobody can pay attention to or stop.
5. SCP-993 and SCP-784 are two anomalous TV shows that can cause murders and nightmares with their broadcasts.
6. SCP-3280 and SCP-009 are both forms of rogue water that can infect the water cycle and cause mass destruction.
7. SCP-2094 and SCP-323 are a cannibalistic duo that can devour thousands of people with their anomalous abilities.
8. SCP-4973 and SCP-2419 are both groups of vengeful D-class corpses that can attack the Foundation personnel.
9. SCP-507 and SCP-2935 are a potential scenario of bringing the spirit of death to our dimension and wiping out all life.
10. SCP-001 and SCP-1179 are both giant flaming warriors that could fight other large creatures or destroy the world.