Zdar!
1) "Ukradnuté" permanenty jdou vždy do hřbitova svého vlastníka.
400.3. If an object would go to any library, graveyard, or hand other than its owner’s, it goes to its owner’s corresponding zone.
2) Jakmile přestaneš hrát (prohraješ), všechny herní objekty (karty, schopnosti na stacku atd.), jež ti patří, okamžitě zmizí a karty, jež máš pod kontrolou a nepatří ti, se vrátí pod kontrolu svých vlastníků.
800.4a When a player leaves the game, all objects (see rule 109) owned by that player leave the game and any effects which give that player control of any objects or players end. Then, if that player controlled any objects on the stack not represented by cards, those objects cease to exist. Then, if there are any objects still controlled by that player, those objects are exiled. This is not a state-based action. It happens as soon as the player leaves the game. If the player who left the game had priority at the time he or she left, priority passes to the next player in turn order who’s still in the game.