When you use her first, she adds ten mana to the first not filled spell in her hand.
If it’s a card with stored mana, it won’t add mana if the base cost is full, but fill the next one. That’s fine, likely intended and only mentioned because I’m at it. But this mechanic fails to work when there are copies of spells in your hand. If the top spell is one, you don’t gain mana.. Which is kind of annoying since she’s a) the only pw where the nerfed storm is still somehow useful and b) her ult now fetches copies.
//Edited Title - Tombstone