So how exactly does duct tape work cause its not particularly obvious to me you cant really buff it
basically whatever effect your weapon or item applies it will apply it to adjacent weapons. For instance if you have a relic that applies poison to all weapons in a row (poison whetstone) you can put duct tape in that row and it will also apply it to the weapons you placed above and below it 1 space. Particularly dangerous with cleavers and shield relic. Doing 130k plus on the first turn of round 1