Ryusei, the Falling Star

Flying
When Ryusei dies, it deals 5 damage to each creature without flying.

Shimatsu the Bloodcloaked

As Shimatsu enters, sacrifice any number of permanents. Shimatsu enters with that many +1/+1 counters on it.

Sideswipe

You may change any targets of target Arcane spell.

Sokenzan Bruiser

Mountainwalk (This creature can't be blocked as long as defending player controls a Mountain.)

Soul of Magma

Whenever you cast a Spirit or Arcane spell, this creature deals 1 damage to target creature.

Isamaru, Hound of Konda

Soulblast

As an additional cost to cast this spell, sacrifice all creatures you control.
Soulblast deals damage to any target equal to the total power of the sacrificed creatures.

Stone Rain

Strange Inversion

Switch target creature's power and toughness until end of turn.
Splice onto Arcane {1}{R} (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.)

Through the Breach

You may put a creature card from your hand onto the battlefield. That creature gains haste. Sacrifice that creature at the beginning of the next end step.
Splice onto Arcane {2}{R}{R} (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.)

Tide of War

Whenever one or more creatures block, flip a coin. If you win the flip, each blocking creature is sacrificed by its controller. If you lose the flip, each blocked creature is sacrificed by its controller.

Uncontrollable Anger

Flash (You may cast this spell any time you could cast an instant.)
Enchant creature
Enchanted creature gets +2/+2 and attacks each combat if able.

Unearthly Blizzard

Up to three target creatures can't block this turn.

Unnatural Speed

Target creature gains haste until end of turn.

Yamabushi's Flame

Yamabushi's Flame deals 3 damage to any target. If a creature dealt damage this way would die this turn, exile it instead.

Yamabushi's Storm

Yamabushi's Storm deals 1 damage to each creature. If a creature dealt damage this way would die this turn, exile it instead.

Champions of Kamigawa