msem-instigator

As an additional cost to cast this spell, sacrifice a permanent.
Reveal the top card of each of your libraries. Put each permanent card revealed this way with mana value less than or equal to the sacrificed permanent's onto the battlefield.

Reach
Imperious Ram can't be blocked by more than one creature.

At the beginning of your first main phase, add {R}.
Whenever a colossal ability puts one or more counters on a creature you control, Draconic Symphony deals 2 damage to any target.

All creatures get -2/-2 until end of turn. At the beginning of the next end step, if three or more creatures died this turn, create two tapped Treasure tokens.

When you cast an instant or sorcery spell, you may sacrifice Shard Flower. If you do, copy that spell. You may choose new targets for the copy.

Landfall — Whenever a land you control enters, Convoy's Companion gets +1/+1 until end of turn. If that land was a Desert, put a +1/+1 counter on it instead.

First strike
At the beginning of your end step, if Emberslash Werewolf didn't attack this turn, transform it.

When Impatient Busker enters, you may put a lore counter on target Saga.

Destroy target artifact, enchantment, or creature with slipstream.
You gain 4 life.

Each opponent mills half their library, rounded up. When they do, return target creature card from a graveyard to the battlefield under your control.

Target creature gets +2/+2 until end of turn. Untap it.

Whenever you cast a spell during an opponent's turn, put a +1/+1 counter on Oracle of Tides.

({T}: Add {G} or {U}.)
As Mushroom Lagoon enters, you may pay {1}. If you don't, Mushroom Lagoon enters tapped.

Target creature gets +3/+3 until end of turn.

Enchant creature
Enchanted creature can't attack or block.
Enchanted creature has “{7}: Destroy Proselytize.”

Create two 1/1 blue Bird creature tokens with flying and “When this creature dies, draw a card.”

Flying, trample
Whenever Raidragos' Avenger deals combat damage to a player, create a 5/5 red Dragon creature token with flying.
Creatures you control get +1/+0 for each Dragon you control.

Performer of Winds can't be blocked.
When Performer of Winds enters, remove a counter from up to one target permanent you control.

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.

Enchant creature
Enchanted creature can't attack or block.
Enchanted creature can't be the target of spells or abilities your opponents control.

Draw cards equal to the number of cards in your hand, then discard three cards.
Cycling {U} ({U}, Discard this card: Draw a card.)

Flash
Enchant creature
Enchanted creature gets -2/-2 and can't block creatures you control.

({T}: Add {G}.)
Wanderlust — Otherworldly Forest enters tapped unless you control four or more other differently named lands.
{1}, {T}: Add one mana of any color.

Sacrifice a creature: Put a +1/+1 counter on Endak City Slavedriver. Activate only as a sorcery.

Create two 1/1 white Soldier creature tokens. You gain 4 life.