Haste

Whenever Screaming Nemesis is dealt damage, it deals that much damage to any other target. If a player is dealt damage this way, they can't gain life for the rest of the game.

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)

I — Gain control of up to one target artifact for as long as you control Scroll of Isildur. The Ring tempts you.

II — Tap up to two target creatures. Put a stun counter on each of them.

III — Draw a card for each tapped creature target opponent controls.

Ward (Whenever this enchantment becomes the target of a spell or ability an opponent controls, counter it unless that player pays .)

When Seal from Existence enters, exile target nonland permanent an opponent controls until Seal from Existence leaves the battlefield.

Flying

: Searchlight Geist gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy it.)

Enchant creature or planeswalker you don't control

When Seatower Imprisonment enters the battlefield, conjure a card named Soldiers of the Watch onto the battlefield.

Enchanted permanent can't attack or block, and its activated abilities can't be activated.

When Sedraxis Alchemist enters, if you control a blue permanent, return target nonland permanent to its owner's hand.

Each creature card in your graveyard has unearth . (: Return the card to the battlefield. The creature gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

Whenever one or more creature cards are put into your graveyard from anywhere, venture into the dungeon. This ability triggers only once each turn. (To venture into the dungeon, enter the first room or advance to the next room.)

Create Undead — Whenever you complete a dungeon, return target creature card from your graveyard to the battlefield.

When Seismic Elemental enters, creatures without flying can't block this turn.

Trample

, Sacrifice a land: Draw a card.

Mountaincycling (, Discard this card: Search your library for a Mountain card, reveal it, put it into your hand, then shuffle.)

Destroy target land. Up to two target creatures can't block this turn.

Destroy target land. Add .

Seismic Strike deals damage to target creature equal to the number of Mountains you control.

: Exile target creature card from a graveyard, then populate. (Create a token that's a copy of a creature token you control.)

Whenever Selhoff Occultist or another creature dies, target player mills a card.

When Separatist Voidmage enters, you may return target creature to its owner's hand.

Flying, first strike

Whenever you cast a historic spell, Serra Disciple gets +1/+1 until end of turn. (Artifacts, legendaries, and Sagas are historic.)

Flying

As Serra's Emissary enters, choose a card type.

You and creatures you control have protection from the chosen card type.

When Serum Visionary enters, draw a card, then scry 2.

Constellation — Whenever an enchantment you control enters, Setessan Skirmisher gets +1/+1 until end of turn.

Flying

Shacklegeist can block only creatures with flying.

Tap two untapped Spirits you control: Tap target creature you don't control.

Trample

Whenever Shaleskin Bruiser attacks, it gets +3/+0 until end of turn for each other attacking Beast.

As an additional cost to cast this spell, tap four untapped creatures you control.

Draw three cards.

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

At the beginning of your upkeep, return target creature card from your graveyard to the battlefield.

At the beginning of each opponent's upkeep, that player sacrifices a creature of their choice.

, Sacrifice a creature: Target creature gets +3/+3 until end of turn.

, , Return Shigeki, Jukai Visionary to its owner's hand: Reveal the top four cards of your library. You may put a land card from among them onto the battlefield tapped. Put the rest into your graveyard.

Channel — , Discard Shigeki: Return X target nonlegendary cards from your graveyard to your hand.

Kicker (You may pay an additional as you cast this spell.)

When Shivan Emissary enters, if it was kicked, destroy target nonblack creature. It can't be regenerated.

, : Draw two cards, then discard a card. Create a 1/1 colorless Pilot creature token with "This creature crews Vehicles as though its power were 2 greater."

Crew 8 (Tap any number of creatures you control with total power 8 or more: This Vehicle becomes an artifact creature until end of turn.)

Shorikai, Genesis Engine can be your commander.

Flying

Whenever Shriekgeist deals combat damage to a player, that player mills two cards.

Whenever Sidisi, Brood Tyrant enters or attacks, mill three cards.

Whenever one or more creature cards are put into your graveyard from your library, create a 2/2 black Zombie creature token.

Exploit (When this creature enters, you may sacrifice a creature.)

When Sidisi's Faithful exploits a creature, return target creature to its owner's hand.

Enchant creature

Enchanted creature can't attack or block.

: Exile enchanted creature. Create a Blood token. (It's an artifact with ", , Discard a card, Sacrifice this artifact: Draw a card.")

: Scry 1. (Look at the top card of your library. You may put that card on the bottom.)

Whenever Silkenfist Fighter becomes blocked, untap it.

Silundi Isle enters tapped.

: Add .

Trample

Whenever a Wolf or Werewolf you control becomes the target of an instant or sorcery spell, create a 2/2 green Wolf creature token.

When Sinister Concierge dies, you may exile it and put three time counters on it. If you do, exile up to one target creature and put three time counters on it. Each card exiled this way that doesn't have suspend gains suspend. (For each card with suspend, its owner removes a time counter from it at the beginning of their upkeep. When the last is removed, they may cast it without paying its mana cost. Those creature spells have haste.)

At the beginning of combat on your turn, each opponent loses 1 life and you gain 1 life.

, Pay 2 life, Sacrifice Sinister Monolith: Draw two cards. Activate only as a sorcery.

Conjure a duplicate of each of up to two target nontoken creatures you control into your hand.

: Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Choose three target creature cards in your graveyard. Return two of them at random to the battlefield and put the other on the bottom of your library.

Sisay, Weatherlight Captain gets +1/+1 for each color among other legendary permanents you control.

: Search your library for a legendary permanent card with mana value less than Sisay's power, put that card onto the battlefield, then shuffle.

: Add .

Flash

Psychic Abomination — When Sister of Silence enters, counter target instant spell, sorcery spell, activated ability, or triggered ability.

Sisterhood of Karn enters with a +1/+1 counter on it.

Paradox — Whenever you cast a spell from anywhere other than your hand, double the number of +1/+1 counters on Sisterhood of Karn.

: Add .

Alliance — Whenever another creature you control enters, target creature an opponent controls can't block this turn. If this is the second time this ability has resolved this turn, that creature attacks during its controller's next combat phase if able.

Morph—Sacrifice two Mountains. (You may cast this card face down as a 2/2 creature for . Turn it face up any time for its morph cost.)

When Skirk Volcanist is turned face up, it deals 3 damage divided as you choose among one, two, or three target creatures.

Skittish Kavu gets +1/+1 as long as no opponent controls a white or blue creature.

Flying

Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, surveil 1. (Look at the top card of your library. You may put it into your graveyard.)