Awesome Cyber Monday

Dragonskull Summit enters the battlefield tapped unless you control a Swamp or a Mountain. {T}: Add {B} or {R}.

Drowned Catacomb enters the battlefield tapped unless you control an Island or a Swamp. {T}: Add {U} or {B}.

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

Activated abilities of artifacts your opponents control can't be activated. [+1]: Until your next turn, up to one target noncreature artifact becom...

You may play land cards from your graveyard.

({T}: Add {W} or {U}.) Irrigated Farmland enters the battlefield tapped. Cycling {2} ({2}, Discard this card: Draw a card.)

Whenever you cast a spell, you gain 1 life for each spell you've cast this turn. Pay 50 life: Aetherflux Reservoir deals 50 damage to any target.

As Unclaimed Territory enters the battlefield, choose a creature type. {T}: Add {C}. {T}: Add one mana of any color. Spend this mana only to cast a...

Hexproof Lotus Field enters the battlefield tapped. When Lotus Field enters the battlefield, sacrifice two lands. {T}: Add three mana of any one co...

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

Equipped creature has nonbasic landwalk. (It can't be blocked as long as defending player controls a nonbasic land.) Equip {2}

{2}, {T}, Sacrifice Wayfarer's Bauble: Search your library for a basic land card and put that card onto the battlefield tapped. Then shuffle your l...

{T}: Add {C}. {1}, {T}, Sacrifice Mind Stone: Draw a card.

At the beginning of your end step, each opponent loses life equal to the number of tapped creatures you control.

({T}: Add {B}.) Witch's Cottage enters the battlefield tapped unless you control three or more other Swamps. When Witch's Cottage enters the battle...

Equipped creature gets +10/+10 and loses flying. Equip {8} ({8}: Attach to target creature you control. Equip only as a sorcery.)

({T}: Add {U}.)

({T}: Add {U} or {B}.) Fetid Pools enters the battlefield tapped. Cycling {2} ({2}, Discard this card: Draw a card.)

Black creature spells you cast cost {1} less to cast. Whenever you cast a creature spell, each opponent loses 1 life and you gain 1 life.

As Sorcerous Spyglass enters the battlefield, look at an opponent's hand, then choose any card name. Activated abilities of sources with the chosen...

{T}: Add one mana of any color among legendary creatures and planeswalkers you control.

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

Red creature spells you cast cost {1} less to cast. Whenever you cast a creature spell, you may discard a card. If you do, draw a card.

{T}: Add {C}. {T}, Pay 1 life: Add one mana of any color. Activate this ability only if you control an artifact.