In planing my D&D campaign, I have an section where the group will have to find three enchanted copper pots to seal away a powerful daemon. I have an idea on how I want it to work, but not sure if the standard rules of D&D will allow it to work. Each pot has a a type of either mind, body, or soul.
Individually the three pots can be used to seal away lesser spirits or creatures. To invoke the enchantment 1 or 2 players make skill checks based on 2 skills linked with the type of pot. If only one player invokes the ritual, they have to make both checks. If two players take part, each player could make one of the two checks.
To invoke the greater ritual, the players would have to draw a basic spell circle with 3 circles equally space between the inner and outer lines. By placing the pots in each circle and successfully making the six skill checks(requiring at least three players), a greater spirit or daemon could be sealed away divided into three parts(mind, body, and soul).
Ideally I would like this to work without each player in the ritual to have the ritual feat. This is because the pots themselves contain all of the magic used and the spell circle is only to focus the power of all three pots at one target.
Would I have to have at least one of the party have a ritual feat for this to work?
Would this work, or do I need to do some more work to prepare this for the campaign?
Note: The pots themselves are where the spirit is sealed away. After being sealed, the players could add additional enchantments to prevent others from trying to break the seal on the daemon.
Note 2: I have not come up with a way to reverse the seal yet but it would require all three pots to be unsealed at the same time to reverse the greater ritual.
--Additional Ideas-- Having an advanced version of the ritual to add additional protective seals to the pots as part of the original seal. This would require a ritual user to pull off.