Levels higher than 10

[MunchkinMan]

The rules say you can't get to Level 10 without killing a Monster, and that's a hard rule. So, unless you're playing epic, the winning Level doesn't change, and you can't go up to Level 10 with a GUAL or by selling Items. As for disregarding: It depends on the card. If it says it must be played immediately when drawn, and that it overrides the rule about having to kill a Monster, then you can use it go up to Level 10. However, most of the cards that let you go up a level (like the ones that have a witty title and basically just say Go Up A Level on the bottom, called GUAL cards) aren't automatic and don't say they intentionally break that rule, so you can't play them, but they still go into your hand. GUAL cards are not like Curses, which are expected to affect you immediately if drawn when kicking open the door. They must be intentionally played by a player.