Black Dragon Gate enters the battlefield tapped.

As Black Dragon Gate enters the battlefield, choose a color other than black.

: Add or one mana of the chosen color.

(: Add or .)

Commercial District enters the battlefield tapped.

When Commercial District enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Indestructible

Once each turn, you may pay rather than pay the mana cost for a colorless spell you cast from your hand.

Look at the top six cards of your library. Put up to two land cards from among them onto the battlefield tapped and the rest on the bottom of your library in a random order. If you put fewer than two lands onto the battlefield this way, proliferate a number of times equal to the difference. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

(: Add .)

Gate of the Black Dragon enters the battlefield tapped.

, : Seek a nonland card. Activate only once.

When Herbology Instructor enters the battlefield, you gain 3 life.

: Transform Herbology Instructor. Activate only as a sorcery. ( can be paid with either or 2 life.)

(: Add or .)

Lush Portico enters the battlefield tapped.

When Lush Portico enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

(: Add or .)

Meticulous Archive enters the battlefield tapped.

When Meticulous Archive enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

(: Add or .)

Raucous Theater enters the battlefield tapped.

When Raucous Theater enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Restless Bivouac enters the battlefield tapped.

: Add or .

: Restless Bivouac becomes a 2/2 red and white Ox creature until end of turn. It's still a land.

Whenever Restless Bivouac attacks, put a +1/+1 counter on target creature you control.

Restless Spire enters the battlefield tapped.

: Add or .

: Until end of turn, Restless Spire becomes a 2/1 blue and red Elemental creature with "As long as it's your turn, this creature has first strike." It's still a land.

Whenever Restless Spire attacks, scry 1.

(: Add or .)

Shadowy Backstreet enters the battlefield tapped.

When Shadowy Backstreet enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

As long as Thran Golem is enchanted, it gets +2/+2 and has flying, first strike, and trample.

(: Add or .)

Undercity Sewers enters the battlefield tapped.

When Undercity Sewers enters the battlefield, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)