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.
{T}: Add {U}.
{U}, {T}: You may play the exiled card without paying its mana cost if a library has twenty or fewer cards in it.

Reliquary Tower

You have no maximum hand size.
{T}: Add {C}.

Plumeveil

Evacuation

Return all creatures to their owners' hands.

Dream Fracture

Counter target spell. Its controller draws a card.
Draw a card.

Memory Erosion

Whenever an opponent casts a spell, that player mills two cards.

Twincast

Copy target instant or sorcery spell. You may choose new targets for the copy.

Island

Boomerang

Return target permanent to its owner's hand.

Cryptic Command

Choose two —
• Counter target spell.
• Return target permanent to its owner's hand.
• Tap all creatures your opponents control.
• Draw a card.

Howling Mine

At the beginning of each player's draw step, if Howling Mine is untapped, that player draws an additional card.

Sanity Grinding

Chroma — Reveal the top ten cards of your library. For each blue mana symbol in the mana costs of the revealed cards, target opponent mills a card. Then put the cards you revealed this way on the bottom of your library in any order.