ToME WikiThings that kill the endgame uniques on one round:
* version 2.2.7 Runecraft while using all your mana at once. The failure rate is 95% but one shot kills Morgy or Melky right away according to the forum. The runes of protection might even protect you for a while so you can make many attempts.
* version 2.2.7 Rings of extra attacks (+238): in alchemy if you need too many XP to raise the pval of an item, it overflows and XP need becomes negative; pval needs a cap. The other alchemy overpowering is fixed in 2.3
* version 2.x Summoning many chain summoners with irresistible breath attacks has occasionally killed Morgoth in one round or two. If it takes more than that, the player isn't in any real danger of being attacked by morgy anyway...
* version 2.x De-hypnotizing lots of Q's before the final fight leads to unlimited summoning as well; except all monsters are loyal.
NeilStevens: This is too many things to put in one bug, and none of these are a bug anyway. All classes and races are not equal. If you find summoners and symbiants too easy, don't use them!
LogrusMage: Most of these are not bugs, but I would argue that one of them is. The alchemy one with the Ring of Extra Attacks is a bug regardless of whether alchemists should be able to create such a ring, because of the involvement of an overflow bug in the stated manner of creating it.