msem-instigator

Whenever a creature you control deals combat damage to a player, if it has no +1/+1 counters on it, put a +1/+1 counter on it. You gain 1 life.

Vigilance
Assault {G}

Enchant creature you control
Trusty Steed's rider gets +2/+2.

Flash
Enchant artifact or creature
Enchanted permanent is an artifact with “{T}: Draw a card then discard a card” and loses all other card types and abilities.

Enchant creature
Enchanted creature doesn't untap during its controller's untap step.

Double strike
Ride {2}{W}

I, II — Each opponent loses 2 life and you gain 2 life.
Discovery — At the beginning of your end step, you draw a card and you lose 2 life.

This spell costs {1} less to cast for each foretold card you own in exile, each permanent you control with foretell, and each card with foretell in your graveyard.
Flying
When Tyrant of Prophecies enters the battlefield, it deals 3 damage to any target.

Assault {X}{R}{R}
Other Elementals you control get +1/+0.
When Unbound Annihilus assaults, create X 1/1 red Elemental creature tokens that are tapped and attacking.

At the beginning of each opponent's upkeep, that player may discard their hand. If the player does, sacrifice Under the Gun. Otherwise, put a bullet counter on Under the Gun, then that player loses life equal to the number of bullet counters on it.

Vigilance
Whenever Underpass Sentinel enters the battlefield or attacks, you may put a +1/+1 counter on another target creature you control without one.
Sacrifice Underpass Sentinel: Embattled creatures you control gain hexproof and indestructible until end of turn.

Target creature can't block until end of turn. If that creature had a Mount attached to it, unattach that Mount and that Mount can't block until end of turn.
Draw a card.

When United in Battle enters the battlefield, look at the top six cards of your library. You may reveal a Dwarf or Elf card from among them and put it into your hand. Put the rest on the bottom in a random order.
Whenever a Dwarf or Elf enters the battlefield under your control, put a +1/+1 counter on it.

When Urn of Heroes enters the battlefield, you may search your library for a legendary card, put that card into your graveyard, then shuffle.
{T}: Add {C}.

Haste
When Urud Stingswoop enters the battlefield, it gains flying until end of turn.

Assault {1}{R}
When Urudi Warlord assaults, it gains first strike until end of turn.

Draw two cards, then you may foretell a card with foretell from your hand. It costs {0} to foretell this way. You lose 2 life.

Foretell {X}{U}
Gain control of target creature with power 2 or less. If this spell was foretold, gain control of target creature with power X or less instead.

Lifelink
Prevent all combat damage that would be dealt to embattled creatures you control.

Menace

At the beginning of combat on your turn, create a token that's a copy of another target nonlegendary creature that crewed Voyager's Ark this turn. That token gains haste.
Crew 3

Defender, reach

Equipped creature gets +2/+1.
Whenever equipped creature attacks, create a 1/1 white Peasant creature token that's tapped and attacking.
Equip {2}

Assault {G}
Whenever a creature you control assaults, it gains indestructible until end of turn.

Flying
Warden of Harshapal Tower's power and toughness are each equal to the number of creatures you control.