Demonic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Mox Emerald

{1}, {T}: Tap target artifact, creature, or land.

Whenever an opponent draws a card, Underworld Dreams deals 1 damage to that player.

Copy target instant or sorcery spell, except that the copy is red. You may choose new targets for the copy.

Each player shuffles their hand and graveyard into their library, then draws seven cards. (Then put Timetwister into its owner's graveyard.)

{T}: Add {C}.
{T}: Draw a card. Activate only if you have exactly seven cards in hand.

{T}, Sacrifice Black Lotus: Add three mana of any one color.