Looking for recommendations on how to start messing around with spells and the like.

Basically, I’m an experienced player that has only really messed around with strength, dexterity, and intellect (but focused more on ash of wars with that one). I now want to do a run focusing on spells, incantations, dragon communion, basically anything I can cast. I don’t really know where to start though.

Should I make a rule for myself to not use certain spells because they’re broken? Is there anything I should just bum rush for at the start of the game? Where should I allocate my stats, just intellect and Faith, or arcane too?

Any advice is appreciated thanks!