Trove of Abundant Riches

When all opponents draw a card draw twice the
amount of cards drawn. in addition if target
player draws more than X cards where X is equal
to the {x} paid for this, they discard X cards or
sacrifice or exile their commander or Companion.

"The most common outlook of avarice is that
sometimes playing dirty in a fair fight can revel
you in prizes no man has gazed or grazed upon."