msem-instigator

Whenever Rustshell Mantis is dealt damage, put that many +1/+1 counters on it. (It must survive the damage to get the counters.)

Return target creature or land card from your graveyard to your hand. You may shuffle up to three cards from your graveyard into your library.

Harness (You may tap a creature you control as you cast this spell. If you do, reduce this spell's mana cost by that creature's power.)
Return up to two target cards from your graveyard to your hand. Exile Secret Stash.

Haste
Whenever a creature attacks, Slashing Pangolin gets +1/+1 until end of turn.

Trample
When Spikehorn Behemoth leaves the battlefield or phases out, draw a card.

Haste
Whenever Spotted Slugger deals combat damage to a player, you may have it deal damage equal to its power to target creature.

Target creature you control gets +2/+2 until end of turn if it's an Insect. Then it fights up to one target creature.

Flash
Reach
Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)
Unstoppable Weed gets +1/+1 for each +1/+1 counter on other creatures you control.

When Weedy Wanderer leaves the battlefield or phases out, put a +1/+1 counter on a creature you control.

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)
When Winding Snake has three or more +1/+1 counters on it, remove them all and transform it.

Experience (Whenever this creature attacks, if it has fewer than three +1/+1 counters on it, put a +1/+1 counter on it.)

When Wistful Fox enters the battlefield, reveal the top eight cards of your library. You may put a creature card from among them into your hand. Put the rest on the bottom of your library in a random order.

When Bug Catcher enters the battlefield, create a 1/1 green Insect creature token.
Whenever a nontoken Insect you control dies, create a 1/1 green Insect creature token.

At the beginning of your postcombat main phase, you may return a creature you control to its owner's hand. If you do, add {G}{U}.

When Chikyu Champion enters the battlefield, choose up to one for each land you control. Create a creature token for each of the chosen characteristics.
• 3/3 red Elemental Mouse with haste.
• 3/3 white and blue Fox with vigilance.
• 4/4 green Plant Dinosaur with trample.
• 4/4 red Dragon with flying.
• 4/4 blue Turtle with hexproof.
• 5/5 white Bear Beast.

{2}{U}{B}: Return Depth Charger to its owner's hand. If you do, return target creature to its owner's hand. That player discards a card.

Copy target spell. You may choose new targets for the copy. (A copy of a permanent spell becomes a token.)

First strike, haste
Other creatures you control with flash or haste have first strike.

Flying
Whenever Flying Scorpion attacks, it gets +1/+0 until end of turn for each creature you control that's not attacking.

Flying
When Ghastly Spirit enters the battlefield, mill four cards, then return a nonland card from your graveyard to your hand.

Menace
{1}{B}{R}: Creatures you control get +1/+0 until end of turn.

[+1]: Until your next turn, up to one target creature gets -2/-1 and gains “When this creature dies, merge it under Lucien, the Ravenous. He has its abilities.”
[–2]: Merge target creature under Lucien, the Ravenous. He has that creature's abilities.
[–6]: For each card merged with Lucien, create a token that's a copy of that card, except it has haste.

When Lunar Vigil enters the battlefield, draw a card, then scry 2.
If you would draw one or more cards, you may instead put a night counter on Lunar Vigil and draw that many cards minus one.
Sacrifice Lunar Vigil: Target player draws a card and adds {R} for each night counter on it.

Lifelink
If you would gain life, you may put that many +1/+1 counters on another creature you control instead.