msem-instigator

Exile the top two cards of your library. Until end of turn, you may play those cards. Add {R} for each creature card exiled this way.

Target creature you control and each other creature with the same name as that creature get +3/+3 and gain trample until end of turn.

Flash
When Rippling Water Arcanist enters the battlefield, copy target instant or sorcery spell you control, then return it to its owner's hand. You may choose new targets for the copy.

Enchant creature
When Rising Tides enters the battlefield, draw a card.
At the beginning of each upkeep, if enchanted creature is untapped, tap it.

Create a token that's a copy of a creature token you control.
Draw a card.

Whenever Sage of Reflections attacks, mill three cards, then choose a creature card milled this way. Create a token that's a copy of it that's tapped and attacking, except it has no mana cost.

Equipped creature gets +1/+1.
Equipped creature has “When this creature dies, if it's not a token, create a token that's a copy of it except it's a colorless Spirit Dragon with flying in addition to its other abilities.”
Equip {2}

Look at the top four cards of your library. You may put a land card from among them onto the battlefield tapped, then put the rest into your graveyard.

Draw a card, then draw cards equal to the number of cards named Sea Cache in your graveyard.

This spell costs {2} less to cast if you activated an ability that's not a mana ability this turn.
Searing Grace deals 3 damage to any target.

Draw a card.
Whenever Seek Guidance is put into your graveyard from your hand or library, scry 2. (This doesn't include being cast.)

Spirited (When this creature enters the battlefield, you may activate one of its activated abilities without paying its cost.)
{2}{W}: Create a 1/1 white Human Samurai creature token.

When Seikatsu Warleader enters the battlefield, if it's not a token, create a token that's a copy of target creature token you control.

Destroy all creatures.

Once each turn, when another creature enters the battlefield under your control, you may search your library for a card with the same name as that creature, reveal it, put it into your hand, then shuffle.

Shadow Courier can't be blocked.

{T}: Add {C}.
As long as Shengin Heartland is in your graveyard, lands you control have “{T}: Add {G} or {U}.”

Revive—{B}, Discard a card. ({B}, Discard a card, Exile this card from your graveyard: Create a token that's a copy of it except it has no mana cost. Revive only as a sorcery.)

You may look at the top card of your library any time.
{T}: Target player mills a card.

Spirited (When this creature enters the battlefield, you may activate one of its activated abilities without paying its cost.)
{2}{W}: Target creature gains vigilance until end of turn.

Whenever Shina Taiyohata or another creature enters the battlefield under your control, you may have that creature gain haste. If you do, return that creature from the battlefield to its owner's hand at the beginning of the next end step.

When Shizen, the Thousand Steps enters the battlefield, draw a card, then choose a creature card name.
Creatures you control with the chosen name get +0/+1 and have hexproof.

Target opponent exiles cards from the top of their library until X land cards are exiled, where X is the number of land cards in your graveyard.

Destroy target artifact. Smoldering Pages deals damage to that artifact's controller equal to that artifact's mana value.

When Soul Jar enters the battlefield, exile target creature and each other creature with the same name as that creature until Soul Jar leaves the battlefield.