There should be some way for the player to get a warning that a monster has a wand of death before it zaps it at the player and kills them.

Prevent wands of death from generating before a certain level difficulty in order to prevent unfair instadeaths for early-game characters from them. This could be implemented so they only don’t generate in monster inventories and can still be found randomly on the ground, or not anywhere at all.

Remove instances of “bad RNG” contributing to forms of instadeath or a disproportionate bad effect for a RNG decision made mostly or completely independently of the player’s decisions, because they just add randomness or variance to the outcome of the game:

• Poison instadeath
• GWTWOD
• Chameleons turning into out-of-difficulty monsters the player can’t handle