Wind Waker -
Creature - Human Samurai
Bushido 3
Whenever ~ attacks, another target attacking creature gains flying until end of turn.
1/1

Creeping Yurei
Creature — Spirit
Whenever Creeping Yurei enters the battlefield, dies, or leaves your graveyard, target creature gets -1/-1 for each creature you control that died this turn.
Hold your breath and close your eyes on the pale roads through Takenuma and never acknowledge your fellow travelers.
2/1

Spirit Spear -
Instant
~ deals 1 damage to any target.
Splice onto instant or sorcery

Made it random to give it a similar feel to Cascade (the inspiration).

Echoes of Minamo
Instant
Return this spell to its owner's hand as it resolves instead of putting it into your graveyard.
Splice onto instant or sorcery—, Exile a card from your hand
The waters flowing over the ruins of Minamo form eddies in which long-forgotten memories replay.

Masterwork Daishō

Artifact -- Equipment (R)
When Masterwork Daishō enters the battlefield, attach it to target creature you control, them arm that creature. (Create a colorless equipment token with "Equipped creature gets +1/+0" and Equip attached to that creature.)
Equipped creature gets +2/+0.
Equip

Harrowed House of Hidetsugu
Legendary Land (R)
: Produce . If you have exactly 10 life, produce instead.
"Imagine the good he could do with all that power if he had even half a mind to do so."
—Michiko Konda, letter to General Takeno

Ravnica


Diverse Recruitment -
Instant
Choose up to two creatures from among creatures you control with no abilities and creature tokens you control. For each of those creatures, create a token that’s a copy of it.

Universal Passphrase
Sorcery
Surveil 2 (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
Cipher (Then you may exile this spell card encoded on a creature you control. Whenever that creature deals combat damage to a player, its controller may cast a copy of the encoded card without paying its mana cost.)
As long as Universal Passphrase is encoded on a creature, that creature can't be blocked.

Destabilize the Waveform
Instant
As an additional cost to cast this spell, sacrifice a creature. If was spent to cast this spell, you may return that creature to its owner's hand instead of sacrificing it.
Destabilize the Waveform deals damage equal to the sacrificed or returned creature's power to target creature or planeswalker.
The elementally dynamic bodies of weirds explode all the time. It's only a loss if the data is lost or more than two labhands are taken out too.

Golgari Badger -
Creature - Badger
Trample
Scavenge abilities that target ~ cost less to activate.
1/1

Azor, the Parun
Legendary Planeswalker — Azor
Spells opponents control cost more to cast for each loyalty counter on Azor.
: Target opponent draws a card.
: Create a 1/1 white and blue Advisor creature token with ": Tap target creature."
: You draw X cards and gain X life.


There's no double -XX symbol.

My opponent’s spells cost more?

yeah, he was oppressive

Habeas Null Zone —
Artifact (U)
Flash
When Habeas Null Zone enters the battlefield, detain target creature. (Until your next turn, that creature can’t attack or block and its activated abilities can’t be activated.)
: Draw a card for each detained creature.

Undercity Sward
Land
, : Add .
, Exile Undercity Sward from your graveyard: Put a +1/+1 counter on target creature you control.

Dominaria

Captor il-Vec —
Creature — Human Soldier (R)
Suspend X —. X can't be 1 or 0. (Rather than cast this card from your hand, you may pay and exile it with X time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, cast it without paying its mana cost. It has haste.)
When you suspend Captor il-Vec, target creature you don't control phases out until Captor il-Vec enters the battlefield.
3/2

Control the Future -
Instant
Counter target spell unless its controller has you create a blue enchantment token with "When an opponent casts a spell, sacrifice this enchantment and counter that spell."