Ok, I've read some of the other questions about this card but I wanted to ask because I want to be 100% certain on the possible interactions before buying this truly confusing card for my EDH Mill deck that would force large draws, large discards, and traditional mill cards.
If it and Howling Mine are on the board and a player has one card in hand at the beginning of his/her turn then that person would draw their first card to have two cards in hand. After that Howling Mine causes a second draw which would trigger Chains and that person would discard one of their two cards and Chains would cause that person to draw another card. The card from Chains does not count as an additional card causing another discard or does it?
If Font of Mythos is on the board and a player has no cards in hand at the beginning of his/her turn then that person would draw their first card to have one in hand. After that Font of Mythos causes a second and third draw which would trigger Chains twice and that person would discard the one card from their hand, mill one, and draw two.
If Wheel of Fortune was used you'd basically mill seven cards and have no hand?
I guess the big question is whether or not the card Chains forces you to draw would restart the cycle or not since I was going to use cards like Forced Fruition and Jace's Archivist to try to work through people's decks.