Boxing Day

Plasma Elemental can't be blocked.

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) Return target artifact to its owner's hand.

Counter target spell. If that spell is countered this way, its controller may put a creature card from their hand onto the battlefield.

Whenever you cast an instant or sorcery spell, you may pay {1}. If you do, scry 2. (Look at the top two cards of your library, then put any number ...

Tap up to three target lands.

Enchant artifact Enchanted artifact has "At the beginning of your upkeep, sacrifice this artifact unless you pay its mana cost."

You may pay {W}{U}{B}{R}{G} rather than pay this spell's mana cost. Trample At the beginning of your upkeep, you may draw two cards.

Target player takes an extra turn after this one. Shuffle Beacon of Tomorrows into its owner's library.

Flying {U}: Advanced Hoverguard gains shroud until end of turn. (It can't be the target of spells or abilities.)

Armed Response deals damage to target attacking creature equal to the number of Equipment you control.

Enchant artifact Enchanted artifact can't attack or block, and its activated abilities can't be activated.

Target creature gets +1/+1 until end of turn. Scry 2. (Look at the top two cards of your library, then put any number of them on the bottom of your...

Sacrifice an artifact: Thermal Navigator gains flying until end of turn.

When you control no other artifacts, sacrifice Synod Centurion.

Imprint — When Summoner's Egg enters the battlefield, you may exile a card from your hand face down. When Summoner's Egg dies, turn the exiled card...

Sunburst (This enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it.) Remove two +1/+1 counters from Spinal Pa...

Sunburst (This enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it.) Flying

At the beginning of each opponent's upkeep, Skullcage deals 2 damage to that player unless they have exactly three or exactly four cards in hand.

Flying, vigilance (This creature can't be blocked except by creatures with flying or reach, and attacking doesn't cause this creature to tap.)

Sunburst (This enters the battlefield with a +1/+1 counter on it for each color of mana spent to cast it.) Remove two +1/+1 counters from Sawtooth ...

{T}: Tap target artifact.

First strike (This creature deals combat damage before creatures without first strike.) At the beginning of your upkeep, sacrifice Razormane Mastic...

Defender (This creature can't attack.) Razorgrass Screen blocks each combat if able.

Sunburst (This enters the battlefield with a charge counter on it for each color of mana spent to cast it.) Equipped creature gets +X/+X, where X i...