Counter target spell. You gain 3 life.

Reveal the top four cards of your library. You may put a creature card from among them onto the battlefield. It gains "At the beginning of your end step, return this creature to its owner's hand." Then put the rest of the cards revealed this way on the bottom of your library in any order.

Flying

Whenever Archon of the Triumvirate attacks, detain up to two target nonland permanents your opponents control. (Until your next turn, those permanents can't attack or block and their activated abilities can't be activated.)

At the beginning of your upkeep, put a filibuster counter on Azor's Elocutors. Then if Azor's Elocutors has five or more filibuster counters on it, you win the game.

Whenever a source deals damage to you, remove a filibuster counter from Azor's Elocutors.

When Deputy of Detention enters the battlefield, exile target nonland permanent an opponent controls and all other nonland permanents that player controls with the same name as that permanent until Deputy of Detention leaves the battlefield.

When Detention Sphere enters the battlefield, you may exile target nonland permanent not named Detention Sphere and all other permanents with the same name as that permanent.

When Detention Sphere leaves the battlefield, return the exiled cards to the battlefield under their owner's control.

({W/U} can be paid with either {W} or {U}.)

Whenever a player casts a noncreature spell, counter that spell. That player creates X 1/1 white and blue Bird creature tokens with flying, where X is the spell's mana value.

+1: Until your next turn, up to one target creature gets -3/-0 and its activated abilities can't be activated.

-1: You gain 2 life and draw a card.

-7: You get an emblem with "Your opponents can't untap more than two permanents during their untap steps."

When Dovin's Acuity enters the battlefield, you gain 2 life and draw a card.

Whenever you cast an instant spell during your main phase, you may return Dovin's Acuity to its owner's hand.

Put up to one target tapped creature on top of its owner's library. You may search your library and/or graveyard for a card named Dovin, Architect of Law, reveal it, and put it into your hand. If you search your library this way, shuffle.

This spell can't be countered.

Counter target noncreature spell.

+1: You gain 2 life and draw a card.

-1: Tap target creature. It doesn't untap during its controller's next untap step.

-9: Tap all permanents target opponent controls. That player skips their next untap step.

+1: Until end of turn, whenever a creature you control deals combat damage to a player, put a loyalty counter on Dovin, Grand Arbiter.

-1: Create a 1/1 colorless Thopter artifact creature token with flying. You gain 1 life.

-7: Look at the top ten cards of your library. Put three of them into your hand and the rest on the bottom of your library in a random order.

Artifact, instant, and sorcery spells your opponents cast cost {1} more to cast.

-1: Until your next turn, prevent all damage that would be dealt to and dealt by target permanent an opponent controls.

Gain control of target monocolored creature.

Forecast -- {1}{U}, Reveal Govern the Guildless from your hand: Target creature becomes the color or colors of your choice until end of turn. (Activate only during your upkeep and only once each turn.)

White spells you cast cost {1} less to cast.

Blue spells you cast cost {1} less to cast.

Spells your opponents cast cost {1} more to cast.

({T}: Add {W} or {U}.)

As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

Flying

Whenever Isperia the Inscrutable deals combat damage to a player, choose a card name. That player reveals their hand. If a card with the chosen name is revealed this way, search your library for a creature card with flying, reveal it, put it into your hand, then shuffle.

Flying

Whenever a creature attacks you or a planeswalker you control, you may draw a card.

Protection from red

When Lavinia of the Tenth enters the battlefield, detain each nonland permanent your opponents control with mana value 4 or less. (Until your next turn, those permanents can't attack or block and their activated abilities can't be activated.)

Each opponent can't cast noncreature spells with mana value greater than the number of lands that player controls.

Whenever an opponent casts a spell, if no mana was spent to cast it, counter that spell.

At the beginning of your upkeep, detain target creature an opponent controls. (Until your next turn, that creature can't attack or block and its activated abilities can't be activated.)

Draw three cards.

Addendum -- If you cast this spell during your main phase, instead scry 3, then draw three cards.

You gain X life and draw X cards.