MTG Salvation

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Relentless Pursuit 2G
Sorcery (C)

-Reveal the top four cards of your library. You may put a creature card and/or a land card from among them into your hand. Put the rest into your graveyard.
Calix was patient, steadily following Elspeth until their destined confrontation.

VIA https://twitter.com/MTG_Arena

Arena Trickster 3R
Creature - Human Shaman (C)

-Whenever you cast your first spell during each opponent's turn, put a +1/+1 counter on Arena Trickster.
3/3

Quote from Tiro of Meletis »

Yes!!!! Another Kraken! I love it! It has a near effect as well! I don’t think he’s an enchantment creature though

You're right. I edited to correct this

A new card and one from the leaks


VIA https://www.twitch.tv/ladylavinias

Naiad of Hidden Coves 2U
Enchantment Creature - Nymph (C)

-As long as it's not your turn, spells you cast cost 1 less to cast.
2/3


Shoal Kraken 4U
Creature - Kraken (U)

-Constellation - Whenever an enchantment enters the battlefield under your control, you may draw a card. If you do, discard a card.
3/5

VIA https://twitter.com/MTG_Arena

Stinging Lionfish 1U
Enchantment Creature - Fish (U)

-Whenever you cast your first spell during each opponent's turn, you may tap or untap target nonland permanent.
2/1

VIA https://www.twitch.tv/magicmics

Nessian Boar 3GG
Creature - Boar (R)

-All creatures able to block Nessian Boar do so.
-Whenever Nessian Boar becomes blocked by a creature, that creature's controller draws a card.
10/6

VIA https://www.twitch.tv/fishcastmtg

Mire Triton 1B
Creature - Zombie Merfolk (U)

-Deathtouch
-When Mire Triton enters the battlefield, put the top two cards of your library into your graveyard and you gain 2 life.
2/1

VIA https://www.twitch.tv/savjz

Storm Herald 2R
Creature - Human Shaman (R)

-Haste
-When Storm Herald enters the battlefield, return any number of Aura cards from your graveyard to the battlefield attached to creatures you control. Exile those Auras at the beginning of your next end step. If those Auras would leave the battlefield, exile them instead of putting them anywhere else.
3/2

The last ability is
2R: You may put a red creature card or an artifact creature card from your hand onto the battlefield. Sacrifice it at the beginning of the next end step.

VIA https://www.reddit.com/r/MagicArena/comments/ehr6ns/thb_ox_of_agonas_official_rmagicarena_spoiler/

Ox of Agonas 3RR
Creature - Ox (M)

-When Ox of Agonas enters the battlefield, discard your hand, then draw three cards.
-Escape--RR, Exile eight other cards from your graveyard.
-Ox of Agonas escapes with a +1/+1 counter on it.
4/2

VIA https://twitter.com/LiquidSjow/status/1211728449074794496

Brine Giant 6U
Creature - Giant (C)

-This spell costs 1 less to cast for each enchantment you control.
5/6

VIA https://www.youtube.com/watch?reload=9&v=-4l_rn8nPls

edit:
Nyx Lotus 4
Legendary Artifact (R)

-Nyx Lotus enters the battlefield tapped.
-t: Choose a color. Add an amount of mana of that color equal to your devotion to that color.

Most likely enchantment-oriented, but could he himself be an enchantment planeswalker?

Quote from AdmiralBurbia »

Have we seen which artwork is being used for Gideon?

It's his mythic edition artwork