Boxing Day

River Sneak can't be blocked. Whenever another Merfolk enters the battlefield under your control, River Sneak gets +1/+1 until end of turn.

Converge — Draw X cards, where X is the number of colors of mana spent to cast this spell. Then discard two cards.

When Octoprophet enters the battlefield, scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your libr...

Target opponent mills seven cards.

At the beginning of your upkeep, choose target opponent. This turn, that player can't cast spells or activate abilities and plays with their hand r...

Flying

Whenever Scroll Thief deals combat damage to a player, draw a card.

Look at the top three cards of your library. Put one of those cards into your hand and the rest on the bottom of your library in any order. If this...

Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.

Flying Whenever another Spirit enters the battlefield under your control, Mausoleum Wanderer gets +1/+1 until end of turn. Sacrifice Mausoleum Wa...

Counter target noncreature spell.

[+1]: Scry 1, then draw a card. [-2]: Return target creature to its owner's hand. [-8]: You get an emblem with "Whenever an opponent casts their ...

Whenever you cast an artifact spell, create a 1/1 colorless Thopter artifact creature token with flying. {1}{U}, Sacrifice two artifacts: Draw a card.

Creatures you control with power or toughness 1 or less can't be blocked.

Graft 3 (This creature enters the battlefield with three +1/+1 counters on it. Whenever another creature enters the battlefield, you may move a +1/...

Heroic — Whenever you cast a spell that targets Triton Fortune Hunter, draw a card.

Flying Whenever you draw a card, Niv-Mizzet, the Firemind deals 1 damage to any target. {T}: Draw a card.

Bestow {5}{U} (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attache...

You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 coun...

You may have Mercurial Pretender enter the battlefield as a copy of a creature you control, except it has "{2}{U}{U}: Return this creature to its o...

At the beginning of your precombat main phase, you may draw X cards, where X is the number of Shrines you control. If you do, discard a card.

When an opponent casts a spell, sacrifice Lunar Force and counter that spell.

Counter target sorcery spell. Delirium — If there are four or more card types among cards in your graveyard, search the graveyard, hand, and libra...

Flying Tempest Djinn gets +1/+0 for each basic Island you control.