Boxing Day

Your opponents can't cast spells with even mana values. (Zero is even.) Your opponents can't block with creatures with even mana values.

Flying, trample At the beginning of your upkeep, sacrifice Palladia-Mors unless you pay {R}{G}{W}.

Flying At the beginning of your upkeep, sacrifice Vaevictis Asmadi unless you pay {B}{R}{G}. {B}: Vaevictis Asmadi gets +1/+0 until end of turn. {R...

({T}: Add {R}.)

Flying At the beginning of your upkeep, sacrifice Nicol Bolas unless you pay {U}{B}{R}. Whenever Nicol Bolas deals damage to an opponent, that play...

Flying Rampage 2 (Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.) At the b...

Flying At the beginning of your upkeep, sacrifice Arcades Sabboth unless you pay {G}{W}{U}. Each untapped creature you control gets +0/+2 as long a...

{T}: Add {R}. When that mana is spent to cast a red instant or sorcery spell, copy that spell and you may choose new targets for the copy.

{T}: Add {R}. When that mana is spent to cast a red instant or sorcery spell, copy that spell and you may choose new targets for the copy.

Whenever a creature is dealt damage, Repercussion deals that much damage to that creature's controller.

Whenever a creature is dealt damage, Repercussion deals that much damage to that creature's controller.

Add {R}{R}{R}.

Add {R}{R}{R}.

(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.) Jaya's Immolating Inferno deals X damage to each of up...

(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.) Jaya's Immolating Inferno deals X damage to each of up...

[+1]: Add {R}{R}{R}. Spend this mana only to cast instant or sorcery spells. [+1]: Discard up to three cards, then draw that many cards. [−8]: You ...

{T}: Add {C}. {T}: Add {G} or {U}. Talisman of Curiosity deals 1 damage to you.

{T}: Add {C}. {T}: Add {R} or {W}. Talisman of Conviction deals 1 damage to you.

({T}: Add {R}.)

{T}: Add {C}. {T}: Add {B} or {G}. Talisman of Resilience deals 1 damage to you.

{T}: Add {C}. {T}: Add {U} or {R}. Talisman of Creativity deals 1 damage to you.

{T}: Add {C}. {T}: Add {W} or {B}. Talisman of Hierarchy deals 1 damage to you.

{T}: Add {C}. {T}: Add {G} or {W}. Talisman of Unity deals 1 damage to you.

{T}: Add {C}. {T}: Add {R} or {G}. Talisman of Impulse deals 1 damage to you.