msem-instigator

Advance {3}{W} (Cast this for {3}{W} to advance it as it enters. {3}{W}: Advance this as a sorcery.)
At the beginning of your upkeep, you gain 1 life.
Whenever Plush Tea Party advances, create a token that's a copy of it.

When Fallspeaker Satyr enters or dies, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Distorted (This creature can be blocked by tapped creatures but not untapped creatures.)

Cards can't leave graveyards.

Flying
Whenever Swiftwing Sphinx or another creature with flying deals combat damage to an opponent, put a +1/+1 counter on that creature.

Flying
When Demon of Endless Hunger enters, choose one —
• Mill two cards.
• Exile up to two target cards from graveyards.

When Broadside Raider enters, create a 1/1 blue and red Pirate creature token with haste.

First strike
When Petal of a Heart enters, if you cast it, reveal up to two permanent cards with mana value 1 from your hand. For each card revealed this way, conjure a duplicate of that card into your hand.

({T}: Add {G} or {U}.)
Secluded Cascade enters tapped unless you control two or more basic lands.

Ward—Pay 2 life.
Whenever another creature dies, put a hysteria counter on Mob of the End.
At the beginning of your first main phase, remove all hysteria counters from Mob of the End and add that much {R}.

At the beginning of your end step, if you cast no spells this turn, you may return Wrathful Meditant to its owner's hand.

Scrollsnatcher can't block and can't be blocked.
Whenever Scrollsnatcher deals combat damage to a player, look at the top card of each library, then put any number of those cards into their owner's graveyards.

When Dream Keeper enters, each player conjures a card named Fatigue and puts it on top of their library. (It's a colorless sorcery that costs {2} with “Draw a card.”)
Whenever a player draws a card except the first one they draw in each of their draw steps, each opponent mills a card.

Rapport — Whenever Ainok Brushwacker and at least one other creature you control become tapped, Ainok Brushwacker gains first strike until end of turn.

{T}: Draw a card, then discard a card.
Whenever you cast an instant or sorcery spell, untap Exchange Scholar.

First strike
Whenever Creed, Eternal Straggler attacks, exile the top card of your library. You may play that card this turn, and that spell costs {2} less to cast.

(Transforms from Ruined Theater.)
{T}: Add one mana of any color.

Dead-Set Duo can't block.
Whenever Dead-Set Duo deals combat damage to a player, you may pay {B} and sacrifice it. If you do, they discard two cards.

{3}{B}{B}: Return target Zombie creature card from your graveyard to the battlefield.
Whenever another creature you control enters from a graveyard or you revive a creature token, that creature gets +2/+0 and gains haste and menace until end of turn.

Destroy target monocolored permanent.
Reconstruct {4}{B}{G} (You may cast this from your graveyard for its reconstruct cost reduced by the mana value of a permanent you sacrifice as you cast it this way. Then exile this.)
You can only sacrifice permanents that share a color with No Good Deed Goes Unpunished to pay its reconstruct cost.

Equipped creature gets +0/+2 and has flying.
Equip {2}

Vigilance
Permanent spells you cast cost {1} less to cast for each 1 damage Tireless Explorer has dealt to players this turn.

Equipped creature gets +1/+0 and has “Whenever this creature becomes tapped, you gain 1 life.”
Equip {2}

You gain 2 life. Then if you have more life than an opponent, draw a card.
At the beginning of your upkeep, if Bittersweet Reunion is in your graveyard, you may pay {1}{W} and exile it. If you do, you may copy it and cast the copy without paying its mana cost.

First strike
Effigy of Creation gets +1/+1 as long as your fealty to Mountains is four or greater. (Each Mountain you control counts towards your fealty to Mountains.)