At the beginning of your upkeep and whenever you cast a black spell, put a charge counter on this artifact.
{4}, {T}, Sacrifice this artifact: Target player discards a card for each charge counter on this artifact.
Mana cost
3
Mana value
3
Printings
From
$0.13
EDHREC rank
#26769
Buy
Formats
Modern
Legal
Legacy
Legal
Vintage
Legal
Commander
Legal
Rulings
1 Jun 2011
Unlike most abilities that force a player to discard cards, this ability may be activated whenever you could cast an instant, including during your opponent’s draw step after they have drawn a card.
1 Jun 2011
You can’t force an opponent to discard a card they cast by activating the last ability in response. The spell is on the stack by then.