Possibility Heights enters tapped.
{T}: Add {R} or {G}.
{T}, Discard another card named Possibility Heights: Draw a card.

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

Flying
When Powerline Warbler enters, return target artifact card from your graveyard to your hand.

Until end of turn, target creature gains “When this creature dies, return it to the battlefield tapped under its owner's control and teach it flying.”

Other Advisors you control get +1/+1.
Whenever Prime Consuls attacks, defending player may pay {1}. If they do, put a +1/+1 counter on Prime Consuls. Otherwise, create a 2/2 white Advisor creature token that's tapped and attacking.

Enchant creature
Enchanted creature gets +3/+3.
Once each turn, you may cast a spell that targets enchanted creature without paying its mana cost.

Favored
At the beginning of your end step, put a +1/+1 counter on your Champion.

Reveal the top five cards of your library. You may put a colorless permanent card, a monocolored permanent card, and/or a multicolored permanent card from among them into your hand. Put the rest on the bottom of your library in any order.

Flying
Whenever you cast a spell, choose one of its colors that you haven't chosen this way this turn. Add one mana of that color.

Once during each of your turns, you may cast a multicolored spell or a spell with {VP} in its mana cost from your graveyard. When you cast a spell this way, it gains “If this card would be put into a graveyard from anywhere, exile it instead.”

Flash
Whenever you cast a noncreature spell, Prismatic Pack gets +1/+1 until end of turn. Untap it.

Approval — When Prismatic Propagandist enters, create X 1/1 colorless Soldier creature tokens, where X is the number of colors among permanents you control.

When Prismatic Remnant enters, scry 2.

Pristine Grounds enters tapped unless you control no other lands.
{T}: Add one mana of any type Pristine Grounds hasn't produced this game.

{VP}{VP}{VP}: Pristine Star gains double strike until end of turn.

Vigilance
Creatures you control with vigilance have “{W}{U}, {T}: Draw a card. Activate this ability only if this creature attacked this turn.”

As Prodigious Hater enters, look at an opponent's hand, then choose a nonland card name.
Whenever an opponent casts a spell with the chosen name, Prodigious Hater deals 3 damage to that player.

Whenever you cast a spell, if mana from an artifact source was spent to cast it, you may pay 1 life. If you do, draw a card. Do this only once each turn.

Target player discards two cards. If all the cards discarded this way share a card type, that player loses 3 life.

Deathtouch
Whenever a creature you control with deathtouch deals combat damage to a player, you may pay 1 life. If you do, draw a card.

Deathtouch
Whenever one or more artifact creatures you control deal combat damage to an opponent, you draw a card and you lose 1 life.

When Projects Overseer enters, surveil 2.

Trample, haste

As an additional cost to cast spells during an opponent's turn, you may pay {U} and reveal Promethean Jaxl from your hand. If you do, you get a lurk counter.
Flash
Promethean Jaxl enters tapped.
When Promethean Jaxl enters, you draw a card for each lurk counter you have, then you lose all lurk counters.

Whenever you gain life, you may create a 0/0 colorless Robot artifact creature token with X +1/+1 counters on it, where X is the amount of life you gained. Do this only once each turn.