msem-instigator

Target player sacrifices a nontoken creature and mills three cards.

Counter target spell unless its controller pays {1}.

At the beginning of your upkeep, rouse 1. Then if you control a creature with power 5 or greater, put a +1/+1 counter on each creature you control. (Put a +1/+1 counter on a permanent you control. If it isn't a creature, tap it and it becomes a 0/0 creature in addition to its other types.)

Inviolable Realms enters tapped unless you control two or more other lands.
{T}: Add {U}.
{T}, Pay 1 life: Add {W} or {B}.

Gain control of target creature until end of turn. Put a +1/+1 counter on it and another target creature you control and untap them. Those creatures gains haste until end of turn.

If you've lost life this turn, you may cast this spell as though it had flash.
Irate Retribution deals X damage to each creature and each planeswalker. You gain X life.

{T}: Add {C}.
{1}, {T}: Add one mana of any color.

Trample
At the beginning of each combat, you may have Ironhide Bellower deal 3 damage to target creature you control. If you do, Ironhide Bellower gets +3/+0 and can't be blocked by creatures with total power 3 or less until end of turn.

Protection from mana values lower than Ironwood Elemental's power (This permanent can't be blocked, targeted, dealt damage, or enchanted by anything with mana value lower than this creature's power.)
Ironwood Elemental's power and toughness are each equal to the number of creatures you control.

({T}: Add {G}.)
Isolated Cloister enters tapped.
{G}, {T}, Reveal a green card from your hand: You gain 1 life.

{1}, {T}: Tap target creature.

When Jara Disciplinarian enters, each player sacrifices a creature.

Jara Favored gets +2/+2 as long as you've lost life this turn.

Trample
Other creatures you control have base power and toughness 8/8.

Trample, haste
Cadence (Whenever you cast a spell, if its mana value is greater than this creature's power, put a +1/+1 counter on this creature.)

You gain 5 life. Then draw a card if you've lost life this turn.

Flash
Vanishing 3 (This permanent enters with three time counters on it. At the beginning of your upkeep, remove a time counter from it. When the last is removed, sacrifice it.)
When Judge's Decree enters, exile another target spell or nonland permanent. When Judge's Decree is no longer on the battlefield, the exiled card's owner may cast that card without paying its mana cost.

[+1]: Discard a card. If you do, each opponent discards a card and loses 1 life.
[–3]: Destroy target creature or planeswalker.
[–7]: Draw a card for each creature card and planeswalker card in all graveyards. Target opponent loses that much life.

As long as there are seven or more loyalty counters on Kalemn, she has lifelink and deathtouch.
[+2]: Kalemn deals 2 damage to each opponent.
[+1]: Kalemn deals 1 damage to target creature or planeswalker.
[–7]: For each opponent, Kalemn deals 3 damage to that player unless they discard a card. Repeat this process six times.

Lifelink
Engage (This creature must be blocked each combat if able.)

Vigilance, lifelink
{1}, Discard a card: Target Soldier creature gains indestructible until end of turn.

Return target creature, instant, or sorcery card from your graveyard to your hand. Then exile Keep What Was Lost if it wasn't cast from your hand.
Acquiesce (If you cast this spell from your hand, exile it as it resolves. When one or more creatures you control deal combat damage to an opponent, you may cast this card from exile without paying its mana cost.)

First strike
Whenever Keeper of the Banner deals combat damage to a player, draw two cards, then discard two cards.

When Keeper of the Whispers enters, nourish 3. (To nourish 3, either put three +1/+1 counters on this creature or create three 1/1 white Citizen creature tokens.)
Sacrifice a creature: Creatures you control get +1/+1 until end of turn.