Fblthp, the Lost

When Fblthp, the Lost enters, draw a card. If it entered from your library or was cast from your library, draw two cards instead.
When Fblthp becomes the target of a spell, shuffle Fblthp into its owner’s library.

Path to Exile

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Well of Lost Dreams

Whenever you gain life, you may pay , where X is less than or equal to the amount of life you gained. If you do, draw X cards.

Intruder Alarm

Creatures don’t untap during their controllers’ untap steps.
Whenever a creature enters, untap all creatures.

Frantic Search

Draw two cards, then discard two cards. Untap up to three lands.

Shelldock Isle

Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)
Shelldock Isle enters tapped.
: Add .
, : You may play the exiled card without paying its mana cost if a library has twenty or fewer cards in it.