Quoting: krakowitz
Sorry, not sure how I forgot to put the condition in when I said that the pick is conditional
If the 1st round pick is a lottery pick, the owner of the pick receives a 2019 1st (PHI) and 2019 3rd (PHI). Condition is from a previous trade between Florida and Philadelphia
These are the full conditions on the 2018 1st round pick (STL)*
*Condition: If the 2018 draft pick becomes a top 10 pick, Blues have the option to move the pick to 2019. If the pick is moved to 2019, the Flyers will also receive a 2020 3rd round pick.
*Condition: If the 2018 draft pick becomes a top 3 pick, whomever is in possession of the aforementioned pick, they receive Philadelphia's 2019 1st and 3rd round pick.