# Double Trouble
Double Trouble is a monster spell specific to the Wizard of Yendor.  As the name suggests, if he casts this spell and there is only one Wizard in the dungeon, he will clone himself, creating a copy with all the powers of the original Wizard.  The clone has a 50% chance of being created with a cheap plastic imitation of the Amulet of Yendor and will temporarily take on the appearance of a random monster (like a mimic, but with monsters) before his first move.  (This leads to the odd message "Wait! That's the Wizard of Yendor!" if one attempts to move onto the tile occupied by the clone before it attempts to attack.)
If you use The Staff of Aesculapius or Stormbringer to level drain the Wizard to level 18 or below, he cannot cast Double Trouble.[1]

References

↑ Source:Mcastu.c#line168, Source:Mcastu.c#line188, Source:Mcastu.c#line90

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