msem-instigator

Target creature you control gets +2/+1 until end of turn. It fights target creature you don't control. (Each deals damage to the other equal to its power.)

Whenever you cast a spell during another player's turn, monstrosity 1. (If this creature isn't monstrous, put a +1/+1 counter on it and it becomes monstrous.)

Return target nonland permanent to its owner's hand. Then that player discards a card.

At the beginning of combat on your turn, tap Tinchor, put two +1/+1 counters on him, you draw a card, and you lose 1 life.
When Tinchor dies, put his counters on target Human you control.

This creature gets +1/+0 and has indestructible as long as another Knight or Soldier entered under your control this turn.

{T}: Add {G}.
{T}: Add {W}, {U}, {R}, or {B}. Spend this mana only to cast a multicolored spell.

{X}{U}{U}: Marine Monster can't be blocked by creatures with mana value X or less this turn.

At the beginning of your upkeep, if you don't control any Imps, you may pay {B}. If you do, create a 1/1 black Imp creature token.
Sacrifice a creature: Each opponent loses 1 life.

Target player sacrifices an attacking creature. You gain life equal to that creature's power.

Shimmering Seadragon gets +1/+0 and can't be blocked as long as you control a legendary creature.

Flying
When Soaring Skymage enters, mill four cards. You may return a creature card with flying from among the milled cards to your hand.

[0]: Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
[–2]: Exile target creature. Create a battle token with three defense and “When this battle leaves the battlefield, return the exiled card to the battlefield under its owner's control.” You're protecting it.
[–5]: Create two 0/0 black Phyrexian Germ creature tokens, then put two +1/+1 counters on each creature you control.

Exile the top card of your library, a card from your hand, and a card from your graveyard. Put one of the exiled cards on top of your library, one into your hand, and the other into your graveyard.

Lifelink
{T}, Pay 4 life or sacrifice another permanent: Draw a card.

Enchant creature or planeswalker
Enchanted permanent can't attack or block and loses all abilities.

Other creatures you control named Starfall Dancer get +2/+2.

Melee (Whenever this creature attacks, it gets +1/+1 until end of turn for each opponent you attacked this combat.)
Corym's Elite can't be blocked by creatures with power 2 or less.

Flying
{T}, Exile two cards from your graveyard: Add one mana of any color.

Vigilance
Other Scouts you control get +1/+1 and have vigilance.
{X}, Tap four untapped Scouts you control: Create an X/X green Beast creature token.

Whenever a creature enters, it deals damage equal to its power to any target of its controller's choice.
When Interplanar Raid enters, you may aetherize target creature you control. (To aetherize, create a token that's a copy of it, then exile that token.)

Counter target spell. Return up to one target permanent you control to its owner's hand.

Whenever a creature an opponent controls deals damage to you, monstrosity 2. (If this creature isn't monstrous, put two +1/+1 counters on it and it becomes monstrous.)
Frigid Behemoth can't attack unless it's monstrous.

Other Zombies you control get +1/+1.
Whenever Plague Herald or another Zombie enters under your control, target creature you control gains deathtouch until end of turn.

When Leafdown Lookout enters, if you control another Scout, draw a card, then you may put a land card from your hand onto the battlefield tapped.

Once each turn, when a permanent is exiled from the battlefield by a spell or ability you control, you may draw a card.