Ravnica Allegiance

Create a number of 1/1 red Goblin creature tokens equal to two plus the number of cards named Goblin Gathering in your graveyard.

Azorius Guildgate enters the battlefield tapped. {T}: Add {W} or {U}.

{T}: Add {W} or {U}. {W/U}{W/U}{W/U}{W/U}, {T}, Sacrifice Azorius Locket: Draw two cards.

Defender {T}: Spear Spewer deals 1 damage to each player.

Gateway Plaza enters the battlefield tapped. When Gateway Plaza enters the battlefield, sacrifice it unless you pay {1}. {T}: Add one mana of any c...

Target player shuffles their graveyard into their library. Draw a card.

At the beginning of your upkeep, Ill-Gotten Inheritance deals 1 damage to each opponent and you gain 1 life. {5}{B}, Sacrifice Ill-Gotten Inheritan...

{T}: Add {W} or {B}. {W/B}{W/B}{W/B}{W/B}, {T}, Sacrifice Orzhov Locket: Draw two cards.

Spectacle {2}{B} (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.) When Blade Juggler ...

{T}: Add {W} or {B}. {W/B}{W/B}{W/B}{W/B}, {T}, Sacrifice Orzhov Locket: Draw two cards.

Search your library for a basic land card or Gate card, reveal it, put it into your hand, then shuffle your library.

{T}: Add {B} or {R}. {B/R}{B/R}{B/R}{B/R}, {T}, Sacrifice Rakdos Locket: Draw two cards.

{B}: Twilight Panther gains deathtouch until end of turn.

As an additional cost to cast this spell, pay 5 life or sacrifice a creature or enchantment. Destroy target creature.

Spectacle {2}{R} (You may cast this spell for its spectacle cost rather than its mana cost if an opponent lost life this turn.)

Put a +1/+1 counter on target creature you control. Untap that creature.

Reach

{4}{G}{G}: Adapt 4. (If this creature has no +1/+1 counters on it, put four +1/+1 counters on it.)

Flying {1}{W}: Senate Courier gains vigilance until end of turn.

Target creature gets +1/+0 and gains first strike until end of turn. Scry 1.

Target opponent sacrifices a creature. If you control a creature with power 4 or greater, you gain 4 life.

Exile target creature you control, then return that card to the battlefield under its owner's control. It gains first strike until end of turn.

Whenever Plague Wight becomes blocked, each creature blocking it gets -1/-1 until end of turn.