Rulings

• If you gain control of the enchanted creature, Dead Man's Chest will be put into your graveyard.2018-01-19
• If Dead Man's Chest and the enchanted creature are both put into graveyards at the same time, the last ability of Dead Man's Chest still triggers.2018-01-19
• To determine how many cards to exile, use the enchanted creature's power as it last existed on the battlefield.2018-01-19
• You are a creature's owner if the card representing it began the game in your deck, or if it's a token that entered the battlefield under your control. If Dead Man's Chest enchants a creature that you own but an opponent controls, you'll exile cards from your library.2018-01-19
• The effect of Dead Man's Chest doesn't change when you can cast the exiled cards. For example, if you exile a creature card without flash, you can cast it only during your main phase when the stack is empty.2018-01-19
• Casting an exiled card causes it to leave exile. You can't cast it multiple times.2018-01-19
• In a multiplayer game, if a player leaves the game, all cards that player owns leave as well. If you leave the game, any spells or permanents you control from Dead Man's Chest's ability are exiled.2018-01-19