Boxing Day

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

({T}: Add {W} or {U}.) Prairie Stream enters tapped unless you control two or more basic lands.

Path of Ancestry enters tapped. {T}: Add one mana of any color in your commander's color identity. When that mana is spent to cast a creature spell...

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

Oran-Rief, the Vastwood enters tapped. {T}: Add {G}. {T}: Put a +1/+1 counter on each green creature that entered this turn.

Choose three. You may choose the same mode more than once. • Put two +1/+1 counters on target creature. • Create a token that's a copy of target to...

As Necroblossom Snarl enters, you may reveal a Swamp or Forest card from your hand. If you don't, Necroblossom Snarl enters tapped. {T}: Add {B} or...

Mystic Monastery enters tapped. {T}: Add {U}, {R}, or {W}.

Hideaway 4 (When this land enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random ord...

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

{T}: Add {C}. {T}: Add {B} or {G}. Llanowar Wastes deals 1 damage to you.

{T}: Add {C}. {T}: Add {R} or {G}. Karplusan Forest deals 1 damage to you.

Jungle Hollow enters tapped. When Jungle Hollow enters, you gain 1 life. {T}: Add {B} or {G}.

Hinterland Harbor enters tapped unless you control a Forest or an Island. {T}: Add {G} or {U}.

({T}: Add {B} or {G}.) Haunted Mire enters tapped.

Gruul Turf enters tapped. When Gruul Turf enters, return a land you control to its owner's hand. {T}: Add {R}{G}.

(Gain the next level as a sorcery to add its ability.) During your turn, artifacts you control are Foods in addition to their other types and have ...

Reach

Reach

{T}: Add {C}. {2}{B}{G}, {T}, Sacrifice a creature: Draw a card.

Golgari Rot Farm enters tapped. When Golgari Rot Farm enters, return a land you control to its owner's hand. {T}: Add {B}{G}.

Glacial Fortress enters tapped unless you control a Plains or an Island. {T}: Add {W} or {U}.