Was wondering and wanted to make sure that I know when your mana pool is emptied so I am playing correctly with my elf deck.
If I have a priest of titania
and I tap for, say, 10 mana. I then want to cast say, two elves, totalling 4 mana. after that I now have 6 mana left. I cast a lead the stampede
. Does my mana pool empty after I cast Lead the Stampede? Or do I still have 3 mana left to cast another creature or spell?