msem-instigator

Equipped creature gets +1/+1 and has lifelink.
Whenever equipped creature dies, if it wasn't a token, you may pay {3}. If you do, create a token that's a copy of that creature and attach Bloodguard's Hand to it.
Equip {3}

Deathtouch
When Pestilent Scavenger enters, you may mill three cards.

Trample
Seasoned Adventurer enters with two +1/+1 counters if you control seven or more lands.

Creatures you control get +3/+3 until end of turn.
Cycling {2} ({2}, Discard this card: Draw a card.)

Counter target permanent spell. (Then exile this card. You may cast the creature later from exile.)

At the beginning of your upkeep, you may discard a card. If you do or if you control a creature with power 4 or greater, draw a card.

Deploy 2 (As this enters, you may tap any number of other creatures you control with total power 2 or more.)
When Rogue Groundskeeper enters deployed, exile up to two target cards from a single graveyard.

Destroy target creature.
Its controller loses 2 life.

Enchant creature
As Legacy of Frondpond enters, choose a creature type.
Enchanted creature gets +2/+1, has deathtouch, and is the chosen type in addition to its other types.

Defender, reach
Sacrifice Cackling Jack: It deals 3 damage to any target.

You may put a card you own from outside the game into your hand. Add {B}{B}. You may cast only one more spell this turn. Exile Power From Beyond.

Sacrifice another colorless creature: Put a +1/+1 counter on target creature.

{T}: Tap target creature with power less than or equal to Charmer of the Folded Fan's toughness.

Primal {2}{R} (During your turn, you may cast this spell for {2}{R} instead of playing a land.)
Target creature gets +2/+0 and gains double strike until end of turn.

Whenever a creature dealt damage by Mooncursed Howler this turn dies, create a 2/2 red Werewolf creature token with first strike.

Trample
When Nanowrought Progenitor enters, draw a card for each creature you control with two or more card types.

You may play lands from your graveyard.
Whenever a land you control enters, create a 1/1 white Peasant creature token.

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Frontiers Anew {G}
Sorcery — Adventure
Search your library for a basic land card, reveal it, put it into your hand, then shuffle. (Then exile this card. You may cast the creature later from exile.)

Golden age (If you cast an instant or sorcery spell, activated a nonmana ability, and attacked this turn, enter a renaissance for this game.)
{1}, Sacrifice another creature: Imperious Aristocrat gains indestructible until end of turn. If you're in a renaissance, each opponent loses 2 life and you gain 2 life.

{T}: Add {C}. Put your choice of a flying, first strike, menace, trample, vigilance, or +1/+1 counter on Planar Rift.
{1}, {T}: Remove any number of counters from Planar Rift: Add {C} for each counter removed this way.
{T}: Move a counter from Planar Rift onto target creature you control. Activate only as a sorcery.

Target player reveals two cards at random from their hand. You choose one of them. That player discards that card.

Dawson's Collector can't block.
Whenever Dawson's Collector attacks, you may sacrifice another creature. If you do, create a tapped Treasure token.
Whenever you sacrifice your third permanent each turn, each opponent sacrifices a creature or planeswalker.

When Ancient Tablet enters, scry 2.
{2}, Sacrifice Ancient Tablet: You may shuffle any number of target cards from your graveyard into your library. Draw a card.

Amass Soldiers 1. When you do, target creature you control fights up to one target creature you don't control. (To amass Soldiers 1, put a +1/+1 counter on an Army you control. It's also a Soldier. If you don't control one, create a 0/0 black Soldier Army creature token first.)

Flying
When Percy's Messenger enters, you gain 2 life. You may put a lore counter on a Saga you control.