Better in your hands than... his...
The Magickal Bleach is an item in Kaycee's Mod. When used, all cards on the opposing side of the board will lose their Sigils. Note that this does not affect cards that are yet to be played and are in the top row.
Unlocking the Magickal Bleach[]
To be able to find and use Magickal Bleach, you must complete the first painting puzzle in Leshy's Cabin by placing the proper cards on your side of the board. Once done, the Cabin will shake and Magickal Bleach can be taken from the painting. Picking it up and bringing it to the table will add it to your current items, and make it possible to obtain in the future from item sources.
Strategy[]
Magickal Bleach is a very powerful item, as many of the strongest cards are in part due to their Sigils. It can prevent Airborne cards from tipping the scale over, Waterborne cards from hiding, Burrower cards from blocking attacks, Fledgling cards from evolving and much more.
However, though it visibly appears to bleach out sigils granted by Totems, those sigils will still take effect.
Trivia[]
- Magickal Bleach is presumably the same thing Magnificus used during Act II to wipe the Sigils from your cards.