Rorubei

Blade-Blizzard Kitsune // Blade-Blizzard Kitsune

Mog, Moogle Warrior

Lifelink
Dance — At the beginning of your end step, each player may discard a card. Each player who discarded a card this way draws a card. If a creature card was discarded this way, you create a 1/2 white Moogle creature token with lifelink. Then if a noncreature card was discarded this way, put a +1/+1 counter on each Moogle you control.

Kefka, Court Mage // Kefka, Ruler of Ruin

Whenever Kefka enters or attacks, each player discards a card. Then you draw a card for each card type among cards discarded this way.
{8}: Each opponent sacrifices a permanent of their choice. Transform Kefka. Activate only as a sorcery.

Kefka, Court Mage // Kefka, Court Mage

Emet-Selch, Unsundered // Hades, Sorcerer of Eld

Vigilance
Whenever Emet-Selch enters or attacks, draw a card, then discard a card.
At the beginning of your upkeep, if there are fourteen or more cards in your graveyard, you may transform Emet-Selch.

Ardyn, the Usurper

Demons you control have menace, lifelink, and haste.
Starscourge — At the beginning of combat on your turn, exile up to one target creature card from a graveyard. If you exiled a card this way, create a token that's a copy of that card, except it's a 5/5 black Demon.

Higure, the Still Wind

Ninjutsu {2}{U}{U} ({2}{U}{U}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Whenever Higure deals combat damage to a player, you may search your library for a Ninja card, reveal it, put it into your hand, then shuffle.
{2}: Target Ninja creature can't be blocked this turn.

Monk

Horobi, Death's Wail // Horobi, Death's Wail

"Wherever it went, death came to Phyrexians and Kamigawans alike."
—Records of the Living Historians

Horobi, Death's Wail

Flying
Whenever a creature becomes the target of a spell or ability, destroy that creature.

Lord of Atlantis

Other Merfolk get +1/+1 and have islandwalk. (They can't be blocked as long as defending player controls an Island.)

Unmask

You may exile a black card from your hand rather than pay this spell's mana cost.
Target player reveals their hand. You choose a nonland card from it. That player discards that card.

"I believe life is a series of choices, and you just made the wrong one."

Snap

Return target creature to its owner's hand. Untap up to two lands.

Kaito followed the clues his sister gave him, only to find his friend dead at the hands of a monster.

Shadow of Doubt

({U/B} can be paid with either {U} or {B}.)
Players can't search libraries this turn.
Draw a card.

Goro-Goro, Disciple of Ryusei

{R}: Creatures you control gain haste until end of turn.
{3}{R}{R}: Create a 5/5 red Dragon Spirit creature token with flying. Activate only if you control an attacking modified creature. (Equipment, Auras you control, and counters are modifications.)

"If we don't like our options, we can beg, fight, or steal to change them."

Bribery

Search target opponent's library for a creature card and put that card onto the battlefield under your control. Then that player shuffles.

Kaito's understanding of technology is just as deadly as his blade.

Brain Freeze

Target player mills three cards.
Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Blade-Blizzard Kitsune

Ninjutsu {3}{W} ({3}{W}, Return an unblocked attacker you control to hand: Put this card onto the battlefield from your hand tapped and attacking.)
Double strike