Disfigure

Target creature gets -2/-2 until end of turn.

Negate

Witching Well

When Witching Well enters, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom and the rest on top in any order.)
{3}{U}, Sacrifice Witching Well: Draw two cards.

Tome Raider

Flying
When Tome Raider enters, draw a card.

Tithebearer Giant

When Tithebearer Giant enters, you draw a card and you lose 1 life.

Island

Devious Cover-Up

Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard. You may shuffle up to four target cards from your graveyard into your library.

Cloudkin Seer

Flying
When Cloudkin Seer enters, draw a card.

Mystic Sanctuary

({T}: Add {U}.)
Mystic Sanctuary enters tapped unless you control three or more other Islands.
When Mystic Sanctuary enters untapped, you may put target instant or sorcery card from your graveyard on top of your library.

Forever Young

Put any number of target creature cards from your graveyard on top of your library.
Draw a card.

Reave Soul

Destroy target creature with power 3 or less.

Swamp

Winged Words

This spell costs {1} less to cast if you control a creature with flying.
Draw two cards.

Unexplained Disappearance

Return target creature to its owner's hand.
Surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Mantle of Tides

Equipped creature gets +1/+2.
Whenever you draw your second card each turn, attach Mantle of Tides to target creature you control.
Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

Dismal Backwater

Dismal Backwater enters tapped.
When Dismal Backwater enters, you gain 1 life.
{T}: Add {U} or {B}.