msem-instigator

{T}, Sacrifice an artifact or creature: Each opponent loses 1 life and you gain 1 life.

Escalate {B} (Pay this cost for each mode chosen beyond the first.)
Choose one or more —
• Wicked Blow deals 3 damage to target player or planeswalker.
• Wicked Blow deals 3 damage to target creature.
• You gain 3 life.

When Iekin's Portal enters, look at the top five cards of your library. Put one into your hand and the rest into your graveyard.
{1}{U}{U}: Transform Iekin's Portal. Activate only if your fealty to Islands is five or greater.

At the beginning of each player's upkeep, that player loses 2 life unless they sacrifice a creature.
{4}{G}: Create a 2/2 green Wolf Elemental creature token.

Defender, trample
Tap any number of other untapped creatures you control with total toughness 8 or greater: Formidable Bulkvine's base power becomes 8 until end of turn and it can attack this turn as though it didn't have defender.

Slipstream (This creature can't be blocked as long as only creatures with slipstream are attacking.)
As long as you control three or more artifacts, Regal Seasnake has vigilance. (Attacking doesn't cause it to tap.)

When Elder Prophesier enters, look at the top five cards of your library. You may reveal a Curse card from among them and put it into your hand. Put the rest on the bottom of your library in any order.

Whenever you cast your first instant or sorcery spell each turn, untap equipped creature.
Equip {1}

When Mighty Totem enters, scry 1.
{1}{G}, Sacrifice Mighty Totem: Target creature gets +3/+3 until end of turn.

Flash
When Dreamnapper enters, another target creature phases out until Dreamnapper leaves the battlefield. (Treat it and anything attached to it as though they don't exist as long as it's phased out.)

Knight creatures you control have vigilance.
{2}{G}{W}: Put a +1/+1 counter on each creature you control.

Whenever a Survivor you control dies, each opponent loses 1 life and you gain 1 life.

Enchant creature
You control enchanted creature.

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

Creatures your opponents control enter tapped.
{7}{W}: Tap all creatures target player controls.

For each nontoken enchantment you control, conjure a duplicate of it into your hand. Until the end of your next turn, you have no maximum hand size.
Exile Root Duplication.

{T}: Look at the top card of your library. If its mana value is equal to the number of lands you control, you may reveal it and draw a card.
{1}, Return a land you control to its owner's hand: Scry 1.

Put target land card from a graveyard onto the battlefield under your control.

Trample, haste
Whenever Lisseria, General of Kanaa attacks, you may exchange its power with the power of target creature defending player controls until end of turn.

When Aethermancer's Companion enters, aetherize up to two other non-Cat permanents you control. (Create tokens that are copies of each of them, then exile them.)
Recite {5}{W}{U} (You may cast this spell from your graveyard for its recite cost. If you do, exile it when it enters or if it would leave the battlefield.)

Return up to two target permanents to their owners' hands.

Creatures you control get +1/+0 until end of turn. (Then exile this card. You may play the land later from exile.)

When Journey through Kitasan enters, draw a card, then choose a creature card name.
{1}{W}: Put a +1/+1 counter on each creature you control with the chosen name. Activate only as a sorcery.

As long as your deck contains only black and colorless cards, your minimum deck size is reduced by eight.

Flying
At the beginning of your upkeep, if you have at least two more cards in hand than any opponent, scry 1.