: Add .
, : Target creature gains protection from artifacts until end of turn.

(Gobland isn't a spell, it's affected by summoning sickness, and it has ": Add .")
Gobland can't block.

+1: Wrenn and One gains ": Add until your next turn.
−1: Create a 1/1 green Squirrel creature token.
−4: You get an emblem with "At the beginning of your precombat main phase, add for each creature you control."

, : Add for each Swamp you control.

Search your library for a green creature card, reveal it, put it into your hand, then shuffle.
At the beginning of your next upkeep, pay . If you don't, you lose the game.

Walking Ballista enters with X +1/+1 counters on it.
: Put a +1/+1 counter on Walking Ballista.
Remove a +1/+1 counter from Walking Ballista: It deals 1 damage to any target.

(Start the game with this conspiracy face up in the command zone.)
You can't attack with an odd number of creatures.
Whenever you attack, double target creature's power until end of turn.

: Add .
, : Target creature gets +X/+X until end of turn, where X is the number of Gates you control. Activate only as a sorcery.

Whenever City of Brass becomes tapped, it deals 1 damage to you.
: Add one mana of any color.

: Add .
, : Tap target land.

(: Add .)

: Add .
, : Thespian's Stage becomes a copy of target land, except it has this ability.

Slumbering Waterways enters the battlefield tapped.
: Add or .
Flying, vigilance, trample

Indestructible
: Add .

, : Tap target creature you control and target creature of an opponent's choice they control. Those creatures fight each other. (Each deals damage equal to its power to the other.)

(: Add or .)
Fetching Garden enters the battlefield tapped if it was played from your hand.

: Add .
, Sacrifice Wasteland: Destroy target nonbasic land.

You have no maximum hand size.
: Add .

: Add .

, Sacrifice Tormod's Crypt: Exile target player's graveyard.

Madlands enters the battlefield tapped.
: Add or .
Madness (If you discard this card, discard it into exile. When you do, play it for its madness cost or put it into your graveyard. You can play a land only during your turn and only if you have an available land play remaining.)

Vanishing 4 (This land enters the battlefield with four time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
: Add , , or .

: Add one mana of any color. You get two poison counters.

Forsaken Crossroads enters tapped.
As Forsaken Crossroads enters, choose a color.
When Forsaken Crossroads enters, scry 1. If you weren't the starting player, you may untap Forsaken Crossroads instead.
: Add one mana of the chosen color.

, Sacrifice Lotus Petal: Add one mana of any color.

: Add .
, : Exile the bottom card of target opponent's library.
Whenever one or more cards an opponent owns are put into exile, put a release counter on The Heron Moon. Then if it has thirteen or more release counters on it, sacrifice it and create a copy of Emrakul, the Promised End. Cast it without paying its mana cost.

, Sacrifice Mishra's Bauble: Look at the top card of target player's library. Draw a card at the beginning of the next turn's upkeep.

(: Add .)

: Add .
, : Until end of turn, creatures your opponents control lose hexproof and shroud and can't have hexproof or shroud.

Bojuka Bog enters tapped.
When Bojuka Bog enters, exile target player's graveyard.
: Add .

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

Land casualty 2 (As this land enters, you may sacrifice a creature with power 2 or greater. If you do, create a token that's a copy of this land.)
Maestros' Totally Safe Hideout enters the battlefield tapped.
: Add , , or .

: Add .
Basic landcycling (, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

(: Add .)
Mystic Sanctuary enters tapped unless you control three or more other Islands.
When Mystic Sanctuary enters untapped, you may put target instant or sorcery card from your graveyard on top of your library.

Ascend (If you control ten or more permanents, you get the city's blessing for the rest of the game.)
: Add , , or . If you don't have the city's blessing, you lose 1 life.