msem-instigator

[+2]: Draw two cards, then discard two cards unless you discard an instant or sorcery card.
[–3]: Reveal any number of cards from your hand. Fulmen deals damage to any target equal to the number of instant and sorcery cards revealed.
[–9]: Search each player's library for up to one instant card and one sorcery card. Cast those cards without paying their mana costs. Then each player shuffles.

Exile target nonland permanent. Return that card to the battlefield under its owner's control at the beginning of that player's next end step.

Equipped creature gets +3/+1 and has reach.
Equip {4}

{T}: Add {C}.
{1}: Tomb of Shifting Sands becomes a copy of target land card in any graveyard, except it has this ability and it's a Desert in addition to its other types. (This effect lasts indefinitely.)

When Silvercrest Historian enters, scry 1, then investigate. (Create a colorless Clue artifact token with “{2}, Sacrifice this artifact: Draw a card.”)

This spell costs {X} less to cast, where X is the greatest power among creatures you control.
Tap up to three target creatures. They don't untap during their controller's next untap step.

Menace
Whenever Searing Sandwurm is dealt damage, it deals that much damage to target player or planeswalker.

Whenever Boghex Witch deals combat damage to a cursed player, that player loses the game.
{2}{B}: Look at the top five cards of your library. You may reveal a Curse card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

As long as you have 25 or more life, Alia's Enforcer gets +2/+2 and gains flying.
Whenever an artifact or enchantment you control enters, you gain 1 life.

Flying
When Ephara's Watcher enters, scry 2.

Target creature gets +3/+3 and gains trample until end of turn.

Mill three cards. Return a card from among the milled cards to your hand. Then shuffle three cards from graveyards into their owners' libraries.

Gruff Clutch enters with six +1/+1 counters on it.
{R}, Remove a +1/+1 counter from Gruff Clutch: It deals 1 damage to any target.

Oshiruko Whisperwalker can't be blocked except by Rogues.
Whenever a creature is returned to its owner's hand, you may draw a card. If you do, discard a card.

{T}: Add {C}.
{3}, {T}, Sacrifice Treasure Beach: Create three Treasure tokens. (They have “{T}, Sacrifice this artifact: Add one mana of any color.”)

Exile target creature, then exile target creature card from a graveyard. An opponent chooses one of them. Put the chosen card onto the battlefield under your control.

Creature spells you cast cost {1} less to cast for each of their creature types that no creature you control has.
Whenever you cast a creature spell, if it has a creature type no creature you control has, draw a card.

When Lafterii Augur enters, reveal the top card of your library. If it's an instant or sorcery card, put it into your hand. Otherwise, put it into your graveyard.

Deathtouch
Whenever Ghul of Forgotten Pasts dies, you may exile it. If you do, return target creature card from a graveyard to the battlefield under your control. You gain life equal to that card's mana value.

Flying
{1}{W}: Exile target artifact you control. Return that card to the battlefield under your control at the beginning of the next end step.

At the beginning of your upkeep, Harvest the Stars deals 4 damage to any target.

Flying
Tap three untapped Satrapies you control: You may cast target card from your graveyard. Pay life equal to its mana value rather than pay its mana cost. If that spell would be put into a graveyard, exile it instead.

When Fell Lantern-Bearer enters, choose one —
• Remove a defense counter from each battle you control.
• Put a +1/+1 counter on each other creature you control with a +1/+1 counter on it.

Harpoon Launching deals 3 damage to any target. Create a 1/1 red Goblin creature token.

Equipment spells you cast cost {1} less to cast.
Armed — As long as Fellor Armorsmith is equipped, equip abilities you control cost {1} less to activate.