msem-instigator

Stunning Cascade enters tapped.
{T}: Add {U} or {R}.
{2}{U}{R}, {T}, Sacrifice Stunning Cascade: Draw a card.

Treacherous Den enters tapped.
{T}: Add {B} or {R}.
{2}{B}{R}, {T}, Sacrifice Treacherous Den: Draw a card.

Uncharted Haven enters tapped.
As Uncharted Haven enters, choose a color.
{T}: Add one mana of the chosen color.

Althestran Legionnaire gets +1/+1 for each Aura attached to it.

When Ancestors' Grace enters, you may search your library for an enchantment card, reveal it, put it into your hand, then shuffle.
Enchantments you control not named Ancestors' Grace have indestructible.
Enchanted permanents you control have indestructible.

When Auramancer enters, you may return target enchantment card from your graveyard to your hand.

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a nontoken creature you control enters, you may pay {1}{W}. If you do, create a 1/1 white Bird creature token with flying.

Enchant creature (Target a creature as you cast this. This card enters attached to that creature.)
Enchanted creature gets +2/+2 and has first strike and vigilance.

Flying (This creature can't be blocked except by creatures with flying or reach.)
Motivate 1 (When this creature enters, you may motivate target creature with less power than this by putting a +1/+1 counter on it.)

Disciple of Atemhar has lifelink as long as it has a +1/+1 counter on it.

Kicker {W} (You may pay an additional {W} as you cast this spell.)
Target player sacrifices an attacking creature. If this spell was kicked, you gain life equal to the sacrificed creature's power.

Put a +1/+1 counter on target creature. That creature gains flying until end of turn. Untap it.

When Fearless Recruit dies, create a 1/1 white Rebel creature token.

Motivate 1 (When this creature enters, you may motivate target creature with less power than this by putting a +1/+1 counter on it.)

Motivate 1 (When this creature enters, you may motivate target creature with less power than this by putting a +1/+1 counter on it.)
When Goriana Tactician enters, you may tap target creature.

Flying (This creature can't be blocked except by creatures with flying or reach.)
When Griffin Skycaller enters, target creature you control gets +1/+1 and gains flying until end of turn.

Whenever you cast an enchantment spell, you may pay {W}. If you do, put a +1/+1 counter on target creature.

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a creature you control with flying attacks, it gets +1/+1 until end of turn.

Whenever a creature you control enters, you may have target creature get +1/+1 and gain flying until end of turn.

When Leader of Resistance enters, you may search your library for a Rebel creature card, reveal it, put it into your hand, then shuffle.
Other Rebel creatures you control get +1/+1.

Create two 1/1 white Soldier creature tokens. Prevent all damage that would be dealt to them this turn.

This spell costs {X} less to cast, where X is half the number of creatures on the battlefield, rounded down.
Destroy all creatures.

Kicker {W} (You may pay an additional {W} as you cast this spell.)
When Purging Priestess enters, you may destroy target enchantment. If Purging Priestess was kicked, you gain life equal to that enchantment's mana value.

When Ralezza, Weaver of Okthuros enters, you may put target Aura card that could enchant it from a graveyard onto the battlefield attached to Ralezza.
{1}{W}, Sacrifice an Aura: Ralezza gains indestructible until end of turn.

When Ralezza's Disciple enters, if you control an enchantment, you gain 3 life.