msem-instigator

When Lost Empire's Legacy enters the battlefield, create two Treasure tokens.
{1}, {T}, Sacrifice an artifact: Return target artifact card from your graveyard to your hand.

When Lurking Angler enters the battlefield, if seven or more cards are in your graveyard, draw a card. Otherwise, mill two cards.

Menagerie — When Lurking Feralynx enters the battlefield, if there are five or more creature types among creatures you control, you may search your library for a card named Lurking Feralynx, reveal it, put it into your hand, then shuffle.

Flash (You may cast this spell any time you could cast an instant.)
When Majestic Hippocamp enters the battlefield, target creature gets -2/-0 until end of turn.

Majestic Nauticorn has first strike as long as it's attacking.
Cycling {W} ({W}, Discard this card: Draw a card.)

Pressure {G} (You may cast this spell for its pressure cost if there are seven or more cards in your graveyard.)
Deathtouch

Choose X. You may choose the same mode more than once. Create a creature token for each of the chosen characteristics.
• 1/1 white Bird with flying.
• 1/3 blue Turtle.
• 1/1 black Chipmunk with lifelink.
• 1/1 red Rabbit with haste.
• 2/1 green Squirrel with reach.

Whenever you cast a spell, if it isn't your main phase, choose one. This ability triggers only once each turn.
• Put a +1/+1 counter on Master of Three Paths.
• Tap target creature.
• Master of Three Paths phases out. (Treat it and anything attached to it as though they don't exist until its controller's next turn.)

When Master of the Abyss enters the battlefield, draw two cards, then discard a card.
{2}{U}{U}, {T}, Discard two cards: Create an X/X black Horror creature token, where X is the number of cards in your graveyard.

(Add a quest counter as this enters. Sacrifice after 3.)
Whenever one or more creatures you control survive damage, add a quest counter.
1 — You may put a creature card with mana value 2 or less from your hand onto the battlefield.
2 — Put two +1/+1 counters on target creature you control.
3 — Choose target creature you control. You draw cards equal to half that creature's power, rounded down.

Flash
Reach
Whenever Mattia enters the battlefield or becomes tapped, put a +1/+1 counter on target creature you control.
{2}{G}, {T}: Target creature must be blocked this turn if able. Activate only as a sorcery.

Trample
Enchantment spells and Aurashaper spells you cast cost {1} less to cast.
Whenever another enchantment enters the battlefield under your control, draw a card.

At the beginning of combat on your turn, if you cast an enchantment spell, an instant spell, and a sorcery spell this turn, create two 3/3 red Shark enchantment creature tokens. You may have any number of those tokens gain haste. If you do, sacrifice the tokens you chose at end of combat.

{X}, {T}: Search your library for a creature card with mana value X or less and no creature types noted by Memorial to Sir Jasper, put it onto the battlefield, then shuffle. Note that creature's creature types. Activate only as a sorcery.

Target opponent reveals their hand. You choose a nonland card from it. That player discards that card. You may put a card that has an Adventure that player owns from exile into that player's graveyard.

Whenever Merrow Legendmaker attacks, look at the top five cards of your library. You may reveal an Aura, Aurashaper, or Equipment card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Choose one —
• Destroy target artifact.
• Metal Munch deals 1 damage to each of up to two targets.

When Mettalia's Forward enters the battlefield, you may salvage a card. (Exile one from your graveyard until this creature leaves the battlefield. Whenever this creature deals combat damage to a player, put a card it salvaged into your hand.)

Mettalia is all colors.
Mettalia has protection from each color among cards she's salvaged in exile.
When Mettalia enters the battlefield, for each color, you may salvage a nonlegendary card of that color. (Exile one from your graveyard until this creature leaves the battlefield. Whenever this creature deals combat damage to a player, put a card it salvaged into your hand.)

Whenever you cast a spell from exile, put two +1/+1 counters on Midnight Vagrant. It gains menace until end of turn.
{1}{B}{B}: Exile the top card of target opponent's library. You may play that card during any turn you attacked with a Rogue, and you may spend mana as though it were mana of any color to cast it. Activate only as a sorcery.

(Add a quest counter as this enters. Sacrifice after 3.)
Whenever you cast a legendary spell, add a quest counter.
1 — Look at the top seven cards of your library. You may reveal up to two legendary cards from among them and put them into your hand. Put the rest on the bottom of your library in a random order.
2 — You gain 5 life.
3 — Destroy all nonlegendary creatures.

Vigilance
Whenever Mikkino becomes blocked by a creature with power 3 or greater, exile that creature.

When Militant's Standard enters the battlefield, draw a card if you control a Merfolk.
Equipped creature gets +2/+1.
Equip {2}

Flash
You may cast the first spell that's an enchantment, instant, or sorcery with mana value 1 you cast each turn without paying its mana cost.

{2}{R}, Sacrifice Minefield Bomber: It deals 2 damage to any target.
Cycling {2/R} ({2/R}, Discard this card: Draw a card.)