Spooky20

(Dryad Arbor isn't a spell, it's affected by summoning sickness, and it has "{T}: Add {G}.")

{T}: Add {C}. {3}: Return Drownyard Temple from your graveyard to the battlefield tapped.

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

Whenever an opponent casts a noncreature spell, Gleeful Arsonist deals damage equal to its power to that player. Undying (When this creature dies, ...

Darkmoss Bridge enters tapped. Indestructible {T}: Add {B} or {G}.

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

Castle Vantress enters tapped unless you control an Island. {T}: Add {U}. {2}{U}{U}, {T}: Scry 2.

({T}: Add {B} or {R}.) Canyon Slough enters tapped. Cycling {2} ({2}, Discard this card: Draw a card.)

Bojuka Bog enters tapped. When Bojuka Bog enters, exile target player's graveyard. {T}: Add {B}.

Bloodfell Caves enters tapped. When Bloodfell Caves enters, you gain 1 life. {T}: Add {B} or {R}.

Blackcleave Cliffs enters tapped unless you control two or fewer other lands. {T}: Add {B} or {R}.

Barren Moor enters tapped. {T}: Add {B}. Cycling {B} ({B}, Discard this card: Draw a card.)

Azorius Chancery enters tapped. When Azorius Chancery enters, return a land you control to its owner's hand. {T}: Add {W}{U}.

{T}: Add {C}. Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuf...

First strike, haste Whenever a player taps a land for mana, if Barbflare Gremlin is tapped, that player adds one mana of any type that land produce...

Equipped creature can't be blocked and has shroud. (It can't be the target of spells or abilities.) Equip {2}

You have no maximum hand size. {T}: Add {C}.

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

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

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

{T}: Manifest a card from your hand. (Put that card onto the battlefield face down as a 2/2 creature. Turn it face up any time for its mana cost if...

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

Destroy target creature an opponent controls. That player loses 3 life. Exile Suspended Sentence with three time counters on it. Suspend 3—{1}{B} (...

{1}, {T}: Add {W}{B}.