Boxing Day

{T}, Sacrifice Evolving Wilds: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

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

{T}: Add {C}. {3}, {T}: Draw a card. Activate only if you control a creature with power 4 or greater.

Bloodfell Caves enters the battlefield tapped. When Bloodfell Caves enters the battlefield, you gain 1 life. {T}: Add {B} or {R}.

Each player chooses an artifact, a creature, an enchantment, and a planeswalker from among the nonland permanents they control, then sacrifices the...

{T}: Add {R}, {W}, or {B}. Cycling {2} ({2}, Discard this card: Draw a card.)

{T}: Add {G}, {U}, or {R}. Cycling {2} ({2}, Discard this card: Draw a card.)

{T}: Add {U}, {R}, or {W}. Cycling {2} ({2}, Discard this card: Draw a card.)

{T}: Add {W}, {B}, or {G}. Cycling {2} ({2}, Discard this card: Draw a card.)

Whenever a creature you control leaves the battlefield, if it had counters on it, put those counters on The Ozolith. At the beginning of combat on ...

At the beginning of combat on your turn, choose a kind of counter at random that Crystalline Giant doesn't have on it from among flying, first stri...

Companion — Each permanent card in your starting deck has an activated ability. (If this card is your chosen companion, you may put it into your ha...

Companion — Your starting deck contains at least twenty cards more than the minimum deck size. (If this card is your chosen companion, you may put ...

Companion — Each nonland card in your starting deck shares a card type. (If this card is your chosen companion, you may put it into your hand from ...

Trample Creatures you control with trample have "You may have this creature assign its combat damage as though it weren't blocked."

Companion — Your starting deck contains only cards with odd mana values and land cards. (If this card is your chosen companion, you may put it into...

Companion — Each nonland card in your starting deck has a different name. (If this card is your chosen companion, you may put it into your hand fro...

Companion — Each permanent card in your starting deck has mana value 2 or less. (If this card is your chosen companion, you may put it into your ha...

Companion — Your starting deck contains only cards with mana value 3 or greater and land cards. (If this card is your chosen companion, you may put...

Companion — Each creature card in your starting deck is a Cat, Elemental, Nightmare, Dinosaur, or Beast card. (If this card is your chosen companio...

Companion — No card in your starting deck has more than one of the same mana symbol in its mana cost. (If this card is your chosen companion, you m...

Companion — Your starting deck contains only cards with even mana values. (If this card is your chosen companion, you may put it into your hand fro...

Fiend Artisan gets +1/+1 for each creature card in your graveyard. {X}{B/G}, {T}, Sacrifice another creature: Search your library for a creature ca...

Mutate {3}{W} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on...