When Opulent Roughrider enters or leaves the battlefield, surveil 1, then you may reveal the top card of your library. If that card has the same name as a permanent you control or a card in your graveyard, put it into your hand.
Wander {4}{U}{U}

Vigilance
Whenever you attack, bless target creature.

Trample
Solidarity
{G}, Sacrifice an enchantment: Ozanwood Huntsman gets +2/+2 until end of turn.

Whenever you scry, each opponent loses X life and you gain X life, where X is the number of cards you looked at.
{2}{W}{B}: Scry 1.

Indulgence
Whenever you indulge, create a tapped token that's a copy of Pagentry Golem.

Whenever Parapet Rake deals combat damage to a player, you may put your choice of a flying counter or hexproof counter on Parapet Rake. If you don't, draw a card.

Menace
At the beginning of your end step, if you've sacrificed a permanent this turn, you may discard a card. If you do, draw a card.

Whenever Penrath Dispatcher attacks, you may put a creature card with mana value less than or equal to Penrath Dispatcher's power from your hand onto the battlefield tapped and attacking.
{2}: Penrath Dispatcher gets +1/+1 until end of turn.

Haste
Whenever Penrath Firearm attacks, create a colorless Equipment artifact token with “Equipped creature gets +2/+0” and equip {2} attached to target attacking creature.

Flying
Whenever you attack, target attacking creature gets +1/+1 until end of turn. If you control a green permanent, instead put a +1/+1 counter on that creature.

Flash
When Permafrost Tiger enters, you may have it fight target creature that entered this turn.

Whenever Phenax or another Rogue you control deals damage to a player or planeswalker, each player mills two cards.
{1}{U}{B}, Exile five other cards from your graveyard: Return Phenax from your graveyard to the battlefield transformed. Activate only as a sorcery.

At the beginning of your end step, if you control three or more untapped lands, you draw a card and you lose 1 life.

Flying, haste
When Plasmana Hellkite enters, it deals 2 damage to any target and 1 damage to any other target.

Defender
Approval — Political Prisoner can attack as though it didn't have defender as long as the number of colors among permanents you control is greater than the number of colors among permanents defending player controls.

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.

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

Trample
Whenever a creature you control attacks, put a +1/+1 counter on Pulse of the Unending Rave.
When Pulse of the Unending Rave dies, put its counters on up to one target creature you control. That creature becomes a copy of Pulse of the Unending Rave.

Flying
Whenever you cast a spell that targets a single creature you control, bless that creature.

Whenever you amp it up, Pyrote Technician deals 2 damage to each opponent.

Flying, deathtouch, haste

Whenever Radiant Chromate or another Advisor you control enters, an opponent may pay {1}. If they do, scry 1. Otherwise, put a +1/+1 counter on that creature.

When Rano's Slopeguard enters, you may exile cards from the top of your library until you exile a nonland card with mana value 2 or less, then put the rest on the bottom in a random order. You may cast the exiled card this turn.

Haste
Whenever you cast a spell that targets Rathomar Raider, target creature can't block this turn.

Drop — When Rave Mastermind enters, target player discards a card. If you didn't cast any creature spells during your last turn, that player discards two cards instead. Put each land card discarded this way onto the battlefield tapped under your control.