for st patricks day there was a luck item at a supposed discounted price

The Lucky Cudgel is said to be passed down from St. Patrick himself! In addition to the equip strength and defense benefits, each cudge also boosts your luck by 2%!
this was selling for 4k credits. at the same rate the talismen of luck which costs 10k credits should give no more than a 5% boost. the stat boosts arent very high on the cudgel so i see no reason the boost would not be the same proportionately.