Boxing Day

{U}: Untap Horseshoe Crab.

{T}: Target creature gets -X/-0 until end of turn, where X is the number of Merfolk and/or Faeries you control.

Reveal the top three cards of your library. An opponent chooses one of them. Put that card into your graveyard and the rest into your hand.

Return target instant or sorcery card from your graveyard to your hand.

Flying {2}, Return a land you control to its owner's hand: Target creature with power 2 or less can't be blocked this turn.

You may exile a blue card from your hand rather than pay this spell's mana cost. Return target creature to its owner's hand.

Draw two cards.

Flying {U}, {T}, Discard a card: Return target permanent you control to its owner's hand.

Counter up to two target spells.

{U}, {T}: Target creature can't be blocked this turn. Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with the s...

At the beginning of your upkeep, you may exchange control of target nonland permanent you control and target nonland permanent an opponent controls...

Slipstream Serpent can't attack unless defending player controls an Island. When you control no Islands, sacrifice Slipstream Serpent. Morph {5}{...

Suspend 3—{1}{U}{U} (Rather than cast this card from your hand, pay {1}{U}{U} and exile it with three time counters on it. At the beginning of your...

Counter target instant or sorcery spell. Search its controller's graveyard, hand, and library for all cards with the same name as that spell and ex...

When Screeching Skaab enters the battlefield, mill two cards.

Whenever you cast a multicolored instant or sorcery spell, you may pay {1}. If you do, copy that spell. You may choose new targets for the copy.

Each other Wizard creature you control enters the battlefield with an additional +1/+1 counter on it. {2}, Remove a +1/+1 counter from a creature y...

Draw two cards, then shuffle a card from your hand into your library.

{U}: Quicksilver Elemental gains all activated abilities of target creature until end of turn. (If any of the abilities use that creature's name, u...

Flying Unearth {2}{U} ({2}{U}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end s...

As an additional cost to cast this spell, reveal a Merfolk card from your hand or pay {3}. When Silvergill Adept enters the battlefield, draw a card.

Flying Whenever Yusri, Fortune's Flame attacks, choose a number between 1 and 5. Flip that many coins. For each flip you win, draw a card. For eac...

Flying {2}, Return a land you control to its owner's hand: Draw a card, then discard a card.

When Master of Death enters the battlefield, surveil 2. At the beginning of your upkeep, if Master of Death is in your graveyard, you may pay 1 lif...