Joker Item Questions

I've been doing some theorycrafting and have a few questions about Joker items.

1) Can they count for more than one set at a time?
2) Will they count for a set even if the set doesn't have an item for that slot?
3) Are there other limitations on which sets they may apply to?

I realize that this question may only be answered accurately by KMS players but on the off-chance that one of you plays KMS and knows, I would appreciate these clarifications. Thank you.

Number 2 is definitely no. If the set doesn't have a hat and you put on a Joker hat, it doesn't work.

Hadriel

1. No
2. No
3. The joker item will count on one set and one set only. This is based on the Set ID number, so I think it means that the oldest set takes precedence, but it could also be the youngest.

Alright great, thank you very much.

1. No, it works for only one set.
2. Obviously not.
3. It it counts for the set with the highest set ID I believe