Mishra's Salvage-Shop

{t}: Add {c} {c} {c}.
Whenever an Artifact is put into a graveyard, put
a charge counter on Mishra's Salvage-Shop.
{1}, Remove a charge counter from Mishra's Salvage-Shop: Mishra's
Salvage-Shop deals X damage to each player, where
X is the number of Basic Lands each opponent controls.