After a bit of inspiration and a name change, Magic Item Meltdown is now Forge Weapon. It allows you to use that Amulet of Flying or Altar of Takuli as a weapon in one combat matchup, similar to how a range attack is used, but when doing so it is discarded after combat. The discarding takes place immediately after combat but before healing or retreating, so you would discard the Altar without being able to use it to heal. It doesn't count towards determining who wins the space, and you do not *have* to use a Magic Item as a weapon, only that you *may* if you so desire. Magic Items not used as weapons are not discarded.
EDIT: I have also never really been happy with Witch Queen's Curse and Pawn of the Vierkuns. These have now been changed as well. Enjoy!