msem-instigator

Whenever an opponent casts a spell from a graveyard or without paying its mana cost, Piriman Stones deals 5 damage to them.

Enchant land
Enchanted land loses all land types, has “{T}: Add {C}”, and loses all other abilities.

Mill two cards, then you may return a permanent card that was put into your graveyard from anywhere this turn to your hand.

{T}: Add {C}.
{T}: Add {C} for each six cards in your graveyard.

{U}, Sacrifice Seal of Insights: Look at the top four cards of your library. Put one into your hand and the rest on the bottom of your library in any order.

{T}: Add three mana of any one color.

Trial 4 (As you cast this spell, an opponent of your choice may pay 4 life. If they don't, they fail the trial.)
Target player sacrifices two noncreature permanents if they failed the trial.

Forgotten Attic enters tapped.
When Forgotten Attic enters, look at the top card of your library. You may put it into your graveyard.
{T}: Add {U} or {B}.

Flying, deathtouch

{3}{U}, Reveal this card from your hand, Return an unblocked attacking creature you control to its owner's hand: Put Phasewalker Rake from your hand onto the battlefield tapped and attacking. If you returned a Pirate or Rogue this way, draw a card.

Haste (This creature can attack and {T} as soon as it comes under your control.)
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Reveal the top five cards of your library. You may put a creature or Equipment card revealed this way into your hand. Then put the rest on the bottom of your library in any order.

Counter target spell if you have more cards in your graveyard than that spell's controller.

Foresight — Whenever you draw your second card each turn, Elusive Sage can't be blocked this turn.

Pressure {U}{U} (You may cast this spell for its pressure cost if seven or more cards are in your graveyard.)
Counter target spell.

When Mountain-Western Inventor enters, you may return target artifact card from your graveyard to your hand.
{1}, Sacrifice an artifact: Target creature can't block or be blocked this turn.

At the beginning of your end step, you may sacrifice a creature. When you do, return another target creature card with mana value 2 or less from your graveyard to the battlefield with a finality counter on it. (If a creature with a finality counter on it would die, exile it instead.)

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.)
Deathtouch

When Frost Walker becomes the target of a spell or ability, sacrifice it.

When Far-Realm Guardian enters, create a green Aura enchantment token named Wild Bounty attached to target creature. The token has enchant creature and “Enchanted creature gets +1/+1 and has ward {2}.”

When March of the Unhallowed enters, mill three cards, then return a creature card with mana value 3 or less from your graveyard to the battlefield.
Whenever you attack with three or more creatures, each opponent loses 1 and you gain 1 life.

As an additional cost to cast this spell, pay {4} or sacrifice a creature.
Target creature gets -13/-13 until end of turn. If that creature would die this turn, exile it instead.

Choose one. If you attacked with a creature with mana value 5 or greater this turn, you may choose any number instead.
• Destroy target artifact.
• Destroy target land.
• Fate of the World deals 3 damage divided as you choose among one, two, or three targets.

Epic Boss Fight deals 5 damage to target creature or planeswalker.
Menagerie — If there are five or more creature types among creatures you control, Epic Boss Fight deals 3 damage to that permanent's controller.

Flying
When Illuminating Archangel enters, target creature gets +X/+X and gains vigilance and first strike until end of turn, where X is the number of permanents you control that are Angels, Demons, Faeries, and/or Spirits.