Harbinger of the Seas

Whenever the research team stepped out, the specimen emerged to conduct experiments of its own.

Hydroelectric Specimen

Flash
When this creature enters, you may change the target of target instant or sorcery spell with a single target to this creature.

As long as the scientists were present, the specimen floated patiently or swam quietly about, biding its time, watching.

Hydroelectric Laboratory

As this land enters, you may pay 3 life. If you don't, it enters tapped.
{T}: Add {U}.

Hydroelectric Specimen // Hydroelectric Laboratory

Rona, Herald of Invasion

Whenever you cast a legendary spell, untap Rona.
{T}: Draw a card, then discard a card.
{5}{B/P}: Transform Rona. Activate only as a sorcery. ({B/P} can be paid with either {B} or 2 life.)

Rona, Tolarian Obliterator

Trample
Whenever a source deals damage to Rona, that source's controller exiles a card from their hand at random. If it's a land card, you may put it onto the battlefield under your control. Otherwise, you may cast it without paying its mana cost.

Rona, Herald of Invasion // Rona, Tolarian Obliterator

Tameshi, Reality Architect

Whenever one or more noncreature permanents are returned to hand, draw a card. This ability triggers only once each turn.
{X}{W}, Return a land you control to its owner's hand: Return target artifact or enchantment card with mana value X or less from your graveyard to the battlefield. Activate only as a sorcery.

Tamiyo, Inquisitive Student // Tamiyo, Seasoned Scholar

Clue

Tamiyo, Seasoned Scholar

Tamiyo, Inquisitive Student

Flying
Whenever Tamiyo attacks, investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this token: Draw a card.")
When you draw your third card in a turn, exile Tamiyo, then return her to the battlefield transformed under her owner's control.

+2: Until your next turn, whenever a creature attacks you or a planeswalker you control, it gets -1/-0 until end of turn.
−3: Return target instant or sorcery card from your graveyard to your hand. If it's a green card, add one mana of any color.
−7: Draw cards equal to half the number of cards in your library, rounded up. You get an emblem with "You have no maximum hand size."

Thundertrap Trainer

Offspring {4} (You may pay an additional {4} as you cast this spell. If you do, when this creature enters, create a 1/1 token copy of it.)
When this creature enters, look at the top four cards of your library. You may reveal a noncreature, nonland card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

"You see a waterfall. I see a way up."
—Ko Dari, expedition wizard

Umara Wizard

Whenever you cast an instant, sorcery, or Wizard spell, this creature gains flying until end of turn.

"The source of the Umara River sits high above Oran-Rief, ever weeping on the jungle below."
—Ko Dari, expedition wizard

Umara Skyfalls

Umara Wizard // Umara Skyfalls

Disrupting Shoal

You may exile a blue card with mana value X from your hand rather than pay this spell's mana cost.
Counter target spell if its mana value is X.

Emeria's Call // Emeria, Shattered Skyclave

Angel Warrior

"Iona no longer guards this place. We do."
—Kasla, Emeria shepherd

Emeria's Call

Create two 4/4 white Angel Warrior creature tokens with flying. Non-Angel creatures you control gain indestructible until your next turn.

"You called it the castle of a god. It is less than that, and so much more."
—Kasla, Emeria shepherd

Emeria, Shattered Skyclave

As this land enters, you may pay 3 life. If you don't, it enters tapped.
{T}: Add {W}.

Flare of Denial

You may sacrifice a nontoken blue creature rather than pay this spell's mana cost.
Counter target spell.

Force of Negation

If it's not your turn, you may exile a blue card from your hand rather than pay this spell's mana cost.
Counter target noncreature spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

"You worry too much."
—Nys Dal, Sea Gate trapfinder

Jwari Disruption

Counter target spell unless its controller pays {1}.

"The Ondu Skyclave was a center for rebellion against the capital in Makindi. Of course they built in deadly traps."
—Nys Dal, Sea Gate trapfinder

Jwari Ruins

Jwari Disruption // Jwari Ruins

"We have much to remember ... and much we can never forget."
—Tazri

Sea Gate Restoration

Draw cards equal to the number of cards in your hand plus one. You have no maximum hand size for the rest of the game.

"We carry on the legacy of those who defended our world by continuing to unearth its secrets."
—Tazri

Sea Gate, Reborn

Sea Gate Restoration // Sea Gate, Reborn

The kami help travelers find profound relief, by freeing them from their mortal concerns.

Sink into Stupor

Return target spell or nonland permanent an opponent controls to its owner's hand.

Desperate travelers journey from across Kamigawa, drawn by rumors of relief from all their troubles.

Soporific Springs

Sink into Stupor // Soporific Springs

Step Through

Return two target creatures to their owners' hands.
Wizardcycling {2} ({2}, Discard this card: Search your library for a Wizard card, reveal it, put it into your hand, then shuffle.)

Strix Serenade

Bird

Counter target artifact, creature, or planeswalker spell. Its controller creates a 2/2 blue Bird creature token with flying.

Energy Reserve

Suppression Ray // Orderly Plaza

The Consulate's aether spotlights have a setting to incapacitate trespassers on contact.

Suppression Ray

Tap all creatures target player controls. You may pay any amount of {E}. If you do, choose up to that many creatures tapped this way. Put a stun counter on each of them. (If a permanent with a stun counter would become untapped, remove one from it instead.)

"Chaos fuels the flames of violence. Only through order can peace be assured."
—Dovin Baan

Orderly Plaza

This land enters tapped.
{T}: Add {W} or {U}.

The long-dead librarians are still on hand to recommend selected titles.

Waterlogged Teachings

Search your library for an instant card or a card with flash, reveal it, put it into your hand, then shuffle.

Moldering tomes line rotting shelves. Generations of priceless knowledge fade from memory beneath the waves.

Inundated Archive

This land enters tapped.
{T}: Add {U} or {B}.

Waterlogged Teachings // Inundated Archive

Whir of Invention

Improvise (Your artifacts can help cast this spell. Each artifact you tap after you're done activating mana abilities pays for {1}.)
Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.

Goblin Charbelcher

{3}, {T}: Reveal cards from the top of your library until you reveal a land card. This artifact deals damage equal to the number of nonland cards revealed this way to any target. If the revealed land card was a Mountain, this artifact deals double that damage instead. Put the revealed cards on the bottom of your library in any order.

Lotus Bloom

Suspend 3—{0} (Rather than cast this card from your hand, pay {0} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.)
{T}, Sacrifice this artifact: Add three mana of any one color.

Tezzeret the Seeker

+1: Untap up to two target artifacts.
−X: Search your library for an artifact card with mana value X or less, put it onto the battlefield, then shuffle.
−5: Artifacts you control become artifact creatures with base power and toughness 5/5 until end of turn.

Consign to Memory

Replicate {1} (When you cast this spell, copy it for each time you paid its replicate cost. You may choose new targets for the copies.)
Counter target triggered ability or colorless spell.

Echoing Truth

Return target nonland permanent and all other permanents with the same name as that permanent to their owners' hands.

Flusterstorm

Counter target instant or sorcery spell unless its controller pays {1}.
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Jace, Wielder of Mysteries

If you would draw a card while your library has no cards in it, you win the game instead.
+1: Target player mills two cards. Draw a card.
−8: Draw seven cards. Then if your library has no cards in it, you win the game.

Mystical Dispute

This spell costs {2} less to cast if it targets a blue spell.
Counter target spell unless its controller pays {3}.

Propaganda

Creatures can't attack you unless their controller pays {2} for each creature they control that's attacking you.

Selective Memory

Search your library for any number of nonland cards, exile them, then shuffle.

Thassa's Oracle

When this creature enters, look at the top X cards of your library, where X is your devotion to blue. Put up to one of them on top of your library and the rest on the bottom of your library in a random order. If X is greater than or equal to the number of cards in your library, you win the game. (Each {U} in the mana costs of permanents you control counts toward your devotion to blue.)

Manasources	Probability
1	99.69%
2	96.57%
3	83.95%
4	57.65%
5	27.15%
6	7.44%
7	0.87%

Color Pip	Probability
	99.47%
	80.94%
	70.02%
	60.09%
	60.09%
	0.00%

Belcher

Creatures (17)

Instants (13)

Lands (19)

Sorceries (2)

Artifacts (8)

Planeswalkers (1)

Sideboard (15)

Probability of drawing any mana sources in your first 7 cards

Probability of drawing a mana source of a specific color pip in your first 7 cards

Mana Cost Distribution

Mana Density