msem-instigator

Deathtouch
Whenever you cast a spell, you may pay 2 life. If you do, that spell gains deathtouch. (If it becomes a permanent, it keeps deathtouch indefinitely.)

Menace, haste
Whenever another creature dies, you get a blood counter.
{B}{R}, Pay two blood counters: Return Dthan, Who Bloodies the Sands from your graveyard to the battlefield.

Instant, sorcery, and Dragon cadence (Whenever you cast an instant, sorcery or Dragon spell, if its mana value is greater than this creature's power, put a +1/+1 counter on this creature.)
{R}, {T}, Discard a card: Draw a card.

When Lunar Defractor enters, each player discards a card.
Revive {5}{B}{B} ({5}{B}{B}, Exile this card from your graveyard: Create a token that's a copy of it except it has no mana cost. Revive only as a sorcery.)

Target creature gains indestructible until end of turn. Untap it.
Draw a card.

Search your library for a card, put it into your hand, shuffle, then add three mana in any combination of colors.
{1}, Discard Tahli's Council: Add one mana of any color. Scry 1.

Whenever Daring Skythief crews a Vehicle, that Vehicle gains flying until end of turn.

Defender
When Wall of Ivy enters, create a Vial token. (It's an artifact with “{1}, Sacrifice this and another permanent: Draw a card. Activate only during your turn.”)

When Charming Marauder enters, you may destroy target artifact or enchantment.
Recite {2}{W} (You may cast this creature from your graveyard for its recite cost. If you do, exile it when it enters or if it would leave the battlefield.)

Double strike

Choose one —
• Creatures your opponents control get -1/-1 until end of turn.
• Harmonize twice. (To harmonize, trigger up to one harmony of a permanent you control.)

Search your library for an instant card or a card with flash, reveal it, put it into your hand, then shuffle.
Flashback {5}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Vigilance, reach
As a noncreature spell resolves, exile it instead of putting it anywhere else.

Create two 2/1 black and red Cat Pirate creature tokens with menace. You lose 2 life.

When Driftpicker enters, you may return another non-Crab creature you control to its owner's hand. If you do, create two 1/1 white Bird creature tokens with flying.

Improve {G} ({G}: Put a +1/+1 counter on this creature. This costs {1} more to activate for each +1/+1 counter on it. Improve only as a sorcery.)
When Frontier Trackers dies, create a 1/1 green Elf creature token.

Put target spell on top of its owner's library.
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.”)

When Chikyu Champion enters, 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.

Flying
Revive {1}{B}{B} ({1}{B}{B}, Exile this card from your graveyard: Create a token that's a copy of it except it has no mana cost. Revive only as a sorcery.)

When War of Resources enters, recruit. (Create a 0/0 white Soldier Army creature token, then put a +1/+1 counter on each Army you control.)
Whenever a creature you control dies, each opponent loses 1 life.

Equipped creature gets +3/+3.
Equip {4}
Equip creature with power 5 or greater {1}

Permanents you control gain hexproof and indestructible until end of turn.
Prevent all damage that would be dealt to you this turn.
You gain hexproof until end of turn.

Flying

Equipped creature has hexproof and improve {1}. ({1}: Put a +1/+1 counter on that creature. This costs {1} more to activate for each +1/+1 counter on it. Improve only as a sorcery.)
{4}: Put Faithforged Pauldron from your hand onto the battlefield attached to target creature.
Equip {1}

Auras and Equipment you control have indestructible.
Whenever Bearidge Marshall attacks, you may create a white Aura enchantment token named Arrest attached to target creature. It has enchant creature and “Enchanted creature can't attack or block, and its activated abilities can't be activated.”