Boxing Day

Inspiring Vantage enters tapped unless you control two or fewer other lands. {T}: Add {R} or {W}.

{T}: Add {C}. {4}: This land becomes a 3/3 creature with vigilance and all creature types. It's still a land.

{T}, Pay 1 life, Sacrifice Wooded Foothills: Search your library for a Mountain or Forest card, put it onto the battlefield, then shuffle.

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

Imprint — When Ugin's Labyrinth enters, you may exile a colorless card with mana value 7 or greater from your hand. {T}: Add {C}. If a card is exil...

Spymaster's Vault enters tapped unless you control a Swamp. {T}: Add {B}. {B}, {T}: Target creature you control connives X, where X is the number o...

Shifting Woodland enters tapped unless you control a Forest. {T}: Add {G}. Delirium — {2}{G}{G}: Shifting Woodland becomes a copy of target permane...

{T}, Pay 1 life, Sacrifice Polluted Delta: Search your library for an Island or Swamp card, put it onto the battlefield, then shuffle.

Monumental Henge enters tapped unless you control a Plains. {T}: Add {W}. {2}{W}{W}, {T}: Look at the top five cards of your library. You may revea...

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

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

Arena of Glory enters tapped unless you control a Mountain. {T}: Add {R}. {R}, {T}, Exert Arena of Glory: Add {R}{R}. If that mana is spent on a cr...

Archway of Innovation enters tapped unless you control an Island. {T}: Add {U}. {U}, {T}: The next spell you cast this turn has improvise. (Your ar...

{T}: Add one mana of any color in your commander's color identity.

{T}: Add {R}. {T}: Add {G}. Activate only if you control a Mountain or a Forest.

{T}: Add {G}. {T}: Add {W}. Activate only if you control a Forest or a Plains.

{T}: Add {U}. {T}: Add {B}. Activate only if you control an Island or a Swamp.

{T}: Add {U}. {T}: Add {B}. Activate only if you control an Island or a Swamp.

{T}: Add {W}. {T}: Add {U}. Activate only if you control a Plains or an Island.

{T}: Add {W}. {T}: Add {U}. Activate only if you control a Plains or an Island.

{T}: Add {B}. {T}: Add {R}. Activate only if you control a Swamp or a Mountain.

{T}: Add {B}. {T}: Add {R}. Activate only if you control a Swamp or a Mountain.

Hexproof Valgavoth's Lair enters tapped. As it enters, choose a color. {T}: Add one mana of the chosen color.

({T}: Add {G}.)