Vexing Puzzlebox

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.

“The clues have begun to reveal a truth
I hesitate to accept.”