I just started tinkering with light quest modding. And the problem with that is, then you get BIG ideas. Namely, I want to create a new master quest that risks LOSING the game. 

I was wondering if any of the following are possible/feasible in .xml tags as part of a quest mod-

-Give a unit or item or to an AI player at random (as opposed to rewarding the player with one)

-Have Curgen's Volcano cast on each player's capitol (This is asking a lot, right? I am guessing a spell must be cast by a faction, so could the wildlands or monster faction be triggered to do this, since they don't need mana?) If not the spell, then, could player cities just get razed by some type of condition?

-Can a quest have a failure condition that results in losing the game (being defeated, or forcing a player's surrender)? The master quest has the "Questvictory" condition as part of completing it, does anyone know if there is a "sovereign dead" tag as a consequence of quest failure?

I have a feeling these are very complicated (especially #2) to do in .xml, if not impossible. But I have to see if it's possible before I move on to other ideas.