Do firearms such as muskets, blunderbusses exist in the Forgotten Realms?

My character was turned to stone and then hit by a fireball

Can a Unicorn mount be called by a Paladin’s Find Steed spell use it’s legendary actions?

FIND STEED SPELL https://www.dndbeyond.com/spells/find-steed

Find Steed “spells that target only you”

Does the new College of Swords Blade Flourish fall under an Attack Action?

Can I use Twinned Spell on Ice Knife?