Boxing Day

At the beginning of your upkeep, you may exchange control of target nonland permanent you control and target nonland permanent an opponent controls...

Flash When Prismwake Merrow enters the battlefield, target permanent becomes the color or colors of your choice until end of turn.

{W/U}: Parapet Watchers gets +0/+1 until end of turn.

{1}{U}, {Q}: Merrow Wavebreakers gains flying until end of turn. ({Q} is the untap symbol.)

({T}: Add {B}.)

({T}: Add {B}.)

Enchant creature You control enchanted creature. At the beginning of your upkeep, put a -1/-1 counter on enchanted creature.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

{T}: Add {C}. {G/W}, {T}: Add {G}{G}, {G}{W}, or {W}{W}.

{T}: Add {C}. {U/B}, {T}: Add {U}{U}, {U}{B}, or {B}{B}.

({2/U} can be paid with any two mana or with {U}. This card's mana value is 6.) Look at the top five cards of your library. If you control more cr...

({T}: Add {G}.) Sapseep Forest enters the battlefield tapped. {G}, {T}: You gain 1 life. Activate only if you control two or more green permanents.

{T}: Add one mana of any type that a land you control could produce.

{T}: Add {C}. {W/U}, {T}: Add {W}{W}, {W}{U}, or {U}{U}.

This spell can't be countered. {R/G}: Target spell can't be countered.

{T}, Sacrifice a Mountain: Valleymaker deals 3 damage to target creature. {T}, Sacrifice a Forest: Choose a player. That player adds {G}{G}{G}.

{R}{G}: Each blocked creature gets +1/+0 and gains trample until end of turn.