Blood Fountain

When this artifact enters, create a Blood token. (It's an artifact with "{1}, {T}, Discard a card, Sacrifice this token: Draw a card.")
{3}{B}, {T}, Sacrifice this artifact: Return up to two target creature cards from your graveyard to your hand.

Island

Thoughtcast

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Draw two cards.

Have

Cavern Harpy

Flying
When this creature enters, return a blue or black creature you control to its owner's hand.
Pay 1 life: Return this creature to its owner's hand.

Ichor Wellspring

When this artifact enters or is put into a graveyard from the battlefield, draw a card.

Shrieking Drake

Flying
When this creature enters, return a creature you control to its owner's hand.

Accursed Marauder

When this creature enters, each player sacrifices a nontoken creature of their choice.

Swamp

Refurbished Familiar

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Flying
When this creature enters, each opponent discards a card. For each opponent who can't, you draw a card.

Vault of Whispers

Chittering Rats

When this creature enters, target opponent puts a card from their hand on top of their library.

Seat of the Synod

Unearth

Return target creature card with mana value 3 or less from your graveyard to the battlefield.
Cycling {2} ({2}, Discard this card: Draw a card.)