Monastery Swiftspear

Haste
Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

Rob the Archives

Casualty 1 (As you cast this spell, you may sacrifice a creature with power 1 or greater. When you do, copy this spell.)
Exile the top two cards of your library. You may play those cards this turn.

Daybreak Combatants

Haste
When Daybreak Combatants enters the battlefield, target creature gets +2/+0 until end of turn.

Ral's Reinforcements

Create two 1/1 blue and red Elemental creature tokens.

End the Festivities

End the Festivities deals 1 damage to each opponent and each creature and planeswalker they control.

Seismic Wave

Seismic Wave deals 2 damage to any target and 1 damage to each nonartifact creature target opponent controls.

Dreadmaw's Ire

Until end of turn, target attacking creature gets +2/+2 and gains trample and "Whenever this creature deals combat damage to a player, destroy target artifact that player controls."

Mountain

Etching of Kumano

Haste
If a creature dealt damage this turn by a source you controlled would die, exile it instead.

Kumano Faces Kakkazan

(As this Saga enters and after your draw step, add a lore counter.)
I — Kumano Faces Kakkazan deals 1 damage to each opponent and each planeswalker they control.
II — When you next cast a creature spell this turn, that creature enters the battlefield with an additional +1/+1 counter on it.
III — Exile this Saga, then return it to the battlefield transformed under your control.