Vexing Puzzlebox - 343 - (Commander Legends: Battle for Baldur's Gate)

Whenever you roll one or more dice, put a number of charge counters on Vexing Puzzlebox equal to the result.
T: Add one mana of any color. Roll a d20.
T, Remove 100 charge counters from Vexing Puzzlebox: Search your library for an artifact card, put that card onto the battlefield, then shuffle.