The marble trap has a 12% chance of being passed at level 1, 47% chance at level 50, and an 82% chance at level 99. This is a linear relationship. It is thus affected if your stats have been drained (i.e. by a different marble trap by 5, causing a reduction in 3.9% chance).[1] This is the trap that caused a reduction in probability of passing other traps.
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Level
Construction
1 
