Sensei Golden-Tail

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)
{1}{W}, {T}: Put a training counter on target creature. That creature gains bushido 1 and becomes a Samurai in addition to its other creature types. Activate only as a sorcery.

Filigree Familiar

When Filigree Familiar enters, you gain 2 life.
When Filigree Familiar dies, draw a card.

Kitsune Loreweaver

{1}{W}: Kitsune Loreweaver gets +0/+X until end of turn, where X is the number of cards in your hand.

Opal-Eye, Konda's Yojimbo

Defender (This creature can't attack.)
Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)
{T}: The next time a source of your choice would deal damage this turn, that damage is dealt to Opal-Eye, Konda's Yojimbo instead.
{1}{W}: Prevent the next 1 damage that would be dealt to Opal-Eye this turn.

Autumn-Tail, Kitsune Sage

{1}: Attach target Aura attached to a creature to another creature.

Kitsune Mystic

At the beginning of the end step, if Kitsune Mystic is enchanted by two or more Auras, flip it.

Kitsune Mystic // Autumn-Tail, Kitsune Sage

Rune-Tail's Essence

Prevent all damage that would be dealt to creatures you control.

Rune-Tail, Kitsune Ascendant

When you have 30 or more life, flip Rune-Tail, Kitsune Ascendant.

Rune-Tail, Kitsune Ascendant // Rune-Tail's Essence

Eight-and-a-Half-Tails

{1}{W}: Target permanent you control gains protection from white until end of turn.
{1}: Target spell or permanent becomes white until end of turn.

Kitsune Bonesetter

{T}: Prevent the next 3 damage that would be dealt to target creature this turn. Activate only if you have more cards in hand than each opponent.

Silverstorm Samurai

Flash
Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

Devilthorn Fox

Vulpikeet

Mutate {2}{W} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Flying
Whenever this creature mutates, put a +1/+1 counter on it.

Pious Kitsune

At the beginning of your upkeep, put a devotion counter on Pious Kitsune. Then if a creature named Eight-and-a-Half-Tails is on the battlefield, you gain 1 life for each devotion counter on Pious Kitsune.
{T}, Remove a devotion counter from Pious Kitsune: You gain 1 life.

Kitsune Dawnblade

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)
When Kitsune Dawnblade enters, you may tap target creature.

Silverchase Fox

{1}{W}, Sacrifice Silverchase Fox: Exile target enchantment.

Farfinder

Vigilance
When Farfinder enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Kitsune Diviner

Kitsune Palliator

{T}: Prevent the next 1 damage that would be dealt to each creature and each player this turn.

Kitsune Riftwalker

Split-Tail Miko

{W}, {T}: Prevent the next 2 damage that would be dealt to any target this turn.

Kitsune Healer

{T}: Prevent the next 1 damage that would be dealt to any target this turn.
{T}: Prevent all damage that would be dealt to target legendary creature this turn.

Samurai of the Pale Curtain

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)
If a permanent would be put into a graveyard, exile it instead.

Kitsune Blademaster

First strike
Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)

Flourishing Fox

Whenever you cycle another card, put a +1/+1 counter on Flourishing Fox.
Cycling {1} ({1}, Discard this card: Draw a card.)

Arctic Foxes

Arctic Foxes can't be blocked by creatures with power 2 or greater as long as defending player controls a snow land.