First, I added some events where players can perform an action against any player. This is great for targeting and vengeance haha!
Then I thought, hm. People can't just carry infinite ingredients in their hands. They need to have a limit and then choose what to keep and what to discard. From here, the following rule was made:
You may only hold up to 6 ingredients at a time. If you draw another, you must discard an ingredient as well.