Looking for a huge damage Champ

Syndra.

needs item thou needs ult to 100-0 but will kill people at 60~ % if played right https://plays.tv/video/58d8600f2eb322d6e5/what-talon-does-low-armor-targets-is-actually-disgusting?from=user

Any champion in the game can deal extreme amounts of damage Literally you can play Braum and go full crit AD and still oneshot people. You need to be more specific, although if you want someone who can just chunk people heavily, look for

For some reason right now just 1 shots people. Its pretty crazy.