Infectious Host

When Infectious Host dies, target player loses 2 life.

Macabre Waltz

Return up to two target creature cards from your graveyard to your hand, then discard a card.

As an additional cost to cast this spell, pay X life.
Each other player loses X life.

Douse in Gloom deals 2 damage to target creature and you gain 2 life.

Enchant creature
Whenever enchanted creature deals combat damage to a player, you may return target creature card from your graveyard to your hand.

When Mausoleum Turnkey enters, return target creature card of an opponent's choice from your graveyard to your hand.