両替機/Currency Converter

Artifact -
Whenever you discard a card, you may exile that card from your graveyard. <CR>
{2}, {T}: Draw a card, then discard a card. <CR>
{T}: Put a card exiled with this artifact into your graveyard. If it's a land card, create a Treasure token. If it's a nonland card, create a 2/2 black Rogue creature token.

Artifact -
Whenever you discard a card, you may exile that card from your graveyard. <CR>
{2}, {T}: Draw a card, then discard a card. <CR>
{T}: Put a card exiled with this artifact into its owner's graveyard. If it's a land card, create a Treasure token. If it's a nonland card, create a 2/2 black Rogue creature token.

Artifact -
Whenever you discard a card, you may exile that card from your graveyard. <CR>
{2}, {T}: Draw a card, then discard a card. <CR>
{T}: Put a card exiled with Currency Converter into your graveyard. If it's a land card, create a Treasure token. If it's a nonland card, create a 2/2 black Rogue creature token.

Artifact -
Whenever you discard a card, you may exile that card from your graveyard. <CR>
{2}, {T}: Draw a card, then discard a card. <CR>
{T}: Put a card exiled with this artifact into your graveyard. If it's a land card, create a Treasure token. If it's a nonland card, create a 2/2 black Rogue creature token.