Can't figure out how to use pyromancy as a new pyromancer.

[Phex]

I just started the game as a pyromancer class.
I'm playing on pc keyboard at the moment.
Can someone tell me what the actual keys are to use the pyromancer flame?
I'm at the demon boss and I can't for the life of me find the keybinding in settings anywhere.
I've tried googling an answer but still got nothing that way too.

I'd appreciate some help with this. As this lack of basic control information is starting to make be turn against the game before I've even played it.

[Lumina]

You use the pyromancy flame like every normal weapon. You have 2 weapon slots for every hand, put the pyro flame in such a slot and then use your attack button to cast the spell.
You need only to figure out how to switch your weapons, that's to find in your key settings. Idk the default controls for this, I changed it to C and V.

[Tim]

1. Attune a pyromancy (equip a spell) through the menu when resting at a bonfire.
2. Equip the Pyromancy Flame.
3. Press the light attack button.
Tips: You'll find both a Pyromancy Flame and a pyromancy in the first level, assuming you chose Pyromancer as your starting class. Pyromancies don't have many casts, so you'll want to equip the Pyromancy Flame in the second slot of your left or right hand and only use it in place of your weapon where the range or fire damage are advantageous. If you're stuck at the first boss, you're not meant to fight him right away. There's a little door to the far left of the boss arena that lets you circumvent it for now. You'll collect some items and find gameplay tips to help you with the fight.
Mechanical spoiler: the Pyromancy Flame says it scales with Intelligence, but that's only for the crummy punch you throw when using the heavy attack button. One of the main benefits of pyromancy is that their damage only scales from the strength of your Pyromancy Flame, leaving you to invest your other stats freely. You'll be able to upgrade your Pyromancy Flame later.

[Phex]

Thank you, I was confused by the UI showing me I already had the 8 casts of the flame. I didn't know that there was an item I needed to find too.

[King Vong]

i play on keyboard too and after equiping the pyromancy flame i press shift+ upward mouse wheel and i can equip it, then i attack as normal