Isshin, Two Heavens as One

Isshin, Two Heavens as One // Isshin, Two Heavens as One

Asari Captain

Asari Captain // Asari Captain

Haste
Whenever a Samurai or Warrior you control attacks alone, it gets +1/+0 until end of turn for each Samurai or Warrior you control.

Peerless Samurai

Menace (This creature can't be blocked except by two or more creatures.)
Whenever a Samurai or Warrior you control attacks alone, the next spell you cast this turn costs {1} less to cast.

Akki Ronin

Whenever a Samurai or Warrior you control attacks alone, you may discard a card. If you do, draw a card.

Imperial Subduer

Imperial Subduer // Imperial Subduer

Peerless Samurai // Peerless Samurai

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.)

Whenever a Samurai or Warrior you control attacks alone, tap target creature you don't control.

Risona, Asari Commander

Risona, Asari Commander // Risona, Asari Commander

Eiganjo Exemplar

Whenever a Samurai or Warrior you control attacks alone, it gets +1/+1 until end of turn.

Heiko Yamazaki, the General

Trample
Whenever a Samurai or Warrior you control attacks alone, you may cast target artifact card from your graveyard this turn.

Raiyuu, Storm's Edge

Raiyuu, Storm's Edge // Raiyuu, Storm's Edge

If a creature attacking causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

First strike
Whenever a Samurai or Warrior you control attacks alone, untap it. If it's the first combat phase of the turn, there is an additional combat phase after this phase.

Haste
Whenever Risona deals combat damage to a player, if it doesn't have an indestructible counter on it, put an indestructible counter on it.
Whenever combat damage is dealt to you, remove an indestructible counter from Risona.