msem-instigator

Play with the top card of your library revealed.
Spells you cast that share a creature type with the top card of your library cost {1} less to cast.

During each of your turns, you may cast a copy of a card in an opponent's graveyard by exiling that card in addition to its other costs. (Copies of permanents enter as tokens.)

Flash
Deathtouch, lifelink
Whenever Irika, Wielder of Secrets deals combat damage to a player, you may pay {U/B}. If you do, you draw a card and you lose 1 life.

Enchant creature
Enchanted creature gets +4/+4, has flying and first strike, and is an Angel in addition to its other types.
When enchanted creature dies, return Angelic Destiny to its owner's hand.

Whenever a player casts a spell, that player exiles the top card of each library face down.
Each player may look at and play cards they exiled with Mystic of Many Winds.

Vigilance
Whenever Cohorts of the Grove deals combat damage to a player, if you control a creature with power 4 or greater, draw a card.

Enchant creature
Enchanted creature gets +2/+2 as long as it's legendary. Otherwise, it can't attack or block.
When enchanted creature dies, if it's legendary, return that card to its owner's hand.

Whenever one or more creatures you control attack, you may post a bounty on target creature. (Put a bounty counter on that creature. It has “When this creature dies, each opponent draws a card” as long as it has a bounty counter on it.)

When this creature enters, create a 1/1 black Bat creature token with flying and “This creature can't block.”

({T}: Add {R} or {W}.)
As Prayer Hall enters, you may pay {1}. If you don't, Prayer Hall enters tapped.

Flash
When Tenvilu, Earthen Warden enters, other creatures you control get +2/+2 and gain hexproof and indestructible until end of turn.

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.

Return all creature cards from your graveyard to the battlefield, then exile all but one of them.

Enspirit (As you cast this spell, you may exile a nonenchantment creature you control until this leaves the battlefield or fails to resolve. Reduce this spell's cost by the exiled card's mana value.)
You may play any number of lands on each of your turns.

As an additional cost to cast Scorched-Earth Defence, reappropriate X times. (To reappropriate, exile exactly two cards from your hand and/or graveyard.)
Scorched-Earth Defence deals X damage to each creature and each planeswalker.

As long as you control another artifact, Ruin Guardian gets +1/+1.

Flash
Whenever this enchantment enters, draw a card.
Whenever you cast your first spell during each opponent's turn, draw a card.
Foretell {2}{U} (During your turn, you may pay {2} and exile this card from your hand face down. Cast it on a later turn for its foretell cost.)

You may discard a card. If you do, draw two cards.
Type leitmotif (If you cast this spell from your hand, exile it as it resolves. When you cast your next spell that shares a type with this card, you may cast this from exile without paying its mana cost.)

Whenever another creature in Daoshi Spiritdancer's pack dies, you may sacrifice Daoshi Spiritdancer. If you do, return that creature card to the battlefield under your control at the beginning of the next end step. (Two or more creatures you control with equal power are in a pack.)

Flying, lifelink
Your opponents can't search libraries.
{B}, Pay 2 life, Discard a card: Search your library for a card, then shuffle and put that card on top.

Lifelink
If a creature or planeswalker would die, instead exile it and put a +1/+1 counter on Librarian of Whispers.

Ward {2}
Once each turn, if you would create one or more tokens, create that many of those tokens plus one instead.

Enchant creature
Whenever enchanted creature attacks, audition for green. (Create a 1/1 Construct Actor creature token, a Scout Role giving 2/3 and vigilance, or a Warrior Role giving 3/2 and trample. Roles replace older ones.)

You may pay {B} and 4 life rather than pay this spell's mana cost.
Target creature gets -5/-5 until end of turn.