Reciprocate

Exile target creature that dealt damage to you this turn.

Indomitable Will

Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
Enchanted creature gets +1/+2.

Hold the Line

Blocking creatures get +7/+7 until end of turn.

Mothrider Samurai

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

Blessed Breath

Target creature you control gains protection from the color of your choice until end of turn.
Splice onto Arcane {W} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Plains

Vigilance

Enchant creature
Enchanted creature has vigilance. (Attacking doesn't cause it to tap.)

Samurai Enforcers

Bushido 2 (Whenever this creature blocks or becomes blocked, it gets +2/+2 until end of turn.)

Candles' Glow

Prevent the next 3 damage that would be dealt to any target this turn. You gain life equal to the damage prevented this way.
Splice onto Arcane {1}{W} (As you cast an Arcane spell, you may reveal this card from your hand and pay its splice cost. If you do, add this card's effects to that spell.)

Call to Glory

Untap all creatures you control. Samurai creatures you control get +1/+1 until end of turn.

Cage of Hands

Enchant creature
Enchanted creature can't attack or block.
{1}{W}: Return this Aura to its owner's hand.

No-Dachi

Equipped creature gets +2/+0 and has first strike.
Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery.)

Otherworldly Journey

Exile target creature. At the beginning of the next end step, return that card to the battlefield under its owner's control with a +1/+1 counter on it.

Kenzo the Hardhearted

Double strike; bushido 2 (Whenever this creature blocks or becomes blocked, it gets +2/+2 until end of turn.)

Bushi Tenderfoot

When a creature dealt damage by this creature this turn dies, flip this creature.

Bushi Tenderfoot // Kenzo the Hardhearted

Takeno, Samurai General

Bushido 2 (Whenever this creature blocks or becomes blocked, it gets +2/+2 until end of turn.)
Each other Samurai creature you control gets +1/+1 for each point of bushido it has.

Konda's Hatamoto

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)
As long as you control a legendary Samurai, this creature gets +1/+2 and has vigilance. (Attacking doesn't cause this creature to tap.)

Hand of Honor

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

Nagao, Bound by Honor

Bushido 1 (Whenever this creature blocks or becomes blocked, it gets +1/+1 until end of turn.)
Whenever Nagao attacks, Samurai creatures you control get +1/+1 until end of turn.

Devoted Retainer

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