Boxing Day

{T}: Add {C}. {T}: Add {C}{C}. Spend this mana only to cast colorless Eldrazi spells or activate abilities of colorless Eldrazi.

{T}: Add {C}{C}. This land deals 2 damage to you.

This land enters tapped. {T}: Add {R} or {G}. {2}{R}{G}: Until end of turn, this land becomes a 3/3 red and green Elemental creature with "Whenever...

{T}: Add {C}. {1}: This land becomes a 2/2 creature with all creature types until end of turn. It's still a land.

This land enters tapped. {T}: Add {G} or {U}. {2}{G}{U}: This land becomes a 3/3 green and blue Elemental creature with hexproof until end of turn....

This land enters tapped. {T}: Add {G} or {U}. {2}{G}{U}: This land becomes a 3/3 green and blue Elemental creature with hexproof until end of turn....

This land enters tapped. {T}: Add {B} or {R}. {1}{B}{R}: Until end of turn, this land becomes a 2/2 black and red Elemental creature with "{X}: Thi...

This land enters tapped. {T}: Add {B} or {G}. {1}{B}{G}: This land becomes a 2/2 black and green Elemental creature with deathtouch until end of tu...

This land enters tapped. {T}: Add {B} or {G}. {1}{B}{G}: This land becomes a 2/2 black and green Elemental creature with deathtouch until end of tu...

This land enters tapped. {T}: Add {B} or {G}. {1}{B}{G}: This land becomes a 2/2 black and green Elemental creature with deathtouch until end of tu...

{T}: Add {C}. {2}, {T}: This land becomes a copy of target land, except it has this ability.

{T}: Add {C}. {2}, {T}: You may put a basic land card from your hand onto the battlefield tapped.

{T}: Add {C}. {4}, {T}: Exile target attacking creature an opponent controls. At the beginning of the next end step, return it to the battlefield t...

This land enters tapped. {T}: Add {B} or {R}. {1}{B}{R}: Until end of turn, this land becomes a 2/2 black and red Elemental creature with "{X}: Thi...

{T}: Add {C}. {1}, {T}: Untap target land.

{T}, Pay 1 life, Sacrifice this land: Search your library for a Plains or Swamp card, put it onto the battlefield, then shuffle.

At the beginning of your upkeep, if you control three or more artifacts, you gain 1 life. {T}: Add {C}. {4}, {T}, Sacrifice Inventors' Fair: Search...

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {R} o...

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {B} o...

This land enters tapped. When this land enters, scry 1. (Look at the top card of your library. You may put that card on the bottom.) {T}: Add {R} o...

{1}, {T}: Add {R}{G}.

This land enters tapped unless you control an Island or a Swamp. {T}: Add {G}. {3}{G}, {T}: Surveil 2. (Look at the top two cards of your library, ...

{T}: Add {G}. {T}: Target 1/1 creature gets +1/+2 until end of turn.

{T}: Add {C}. {T}, Sacrifice this land: Destroy target land.