I guess you found out, but when you push the mimic, it will be stunned for one turn.
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×During that turn, you step on The token while the mimic renderings in place.
Regarding execution, some initial positioning move be of help here:
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×I start with sword E and mimic one tile NE
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× The first trapdoor I drop is the center N one
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Autocorrect is
not my friend. Apologies for the typos.