How does Antimagic Field affect a draconic ancestry sorcerer’s Dragon Wings?

Does Flames of Phlegethos trigger on cantrips, like Fire Bolt?

How is the table Life Events by Age used with races like Elf and Dwarf do they automatically get 1d10 life events?

Can I cast Wall of Water spell and deal a bunch of damage to fire elementals using the volume of water against them?