Flash
When Garna, the Bloodflame enters the battlefield, return to your hand all creature cards in your graveyard that were put there from anywhere this turn.
Other creatures you control have haste.

Kicker (You may pay an additional as you cast this spell.)
When Ghitu Chronicler enters the battlefield, if it was kicked, return target instant or sorcery card from your graveyard to your hand.

When Ghitu Journeymage enters the battlefield, if you control another Wizard, Ghitu Journeymage deals 2 damage to each opponent.

As long as there are two or more instant and/or sorcery cards in your graveyard, Ghitu Lavarunner gets +1/+0 and has haste.

Gideon's Reproach deals 4 damage to target attacking or blocking creature.

Kicker (You may pay an additional as you cast this spell.)
Untap target creature. It gets +2/+2 until end of turn. If this spell was kicked, that creature gets +4/+4 until end of turn instead.

: Add three mana of any one color.

Kicker—Sacrifice an artifact or Goblin. (You may sacrifice an artifact or Goblin in addition to any other costs as you cast this spell.)
Goblin Barrage deals 4 damage to target creature. If this spell was kicked, it also deals 4 damage to target player or planeswalker.

First strike
When Goblin Chainwhirler enters the battlefield, it deals 1 damage to each opponent and each creature and planeswalker they control.

Goblin spells you cast cost less to cast.
Goblins you control have haste.

Haste
Whenever one or more creatures you control attack, add that much mana in any combination of and/or . Until end of turn, you don't lose this mana as steps and phases end.

Kicker (You may pay an additional as you cast this spell.)
Search your library for a basic land card, put it onto the battlefield, then shuffle your library. If this spell was kicked, instead search your library for two basic land cards, put them onto the battlefield, then shuffle your library.

Kicker (You may pay an additional as you cast this spell.)
If Grunn, the Lonely King was kicked, it enters the battlefield with five +1/+1 counters on it.
Whenever Grunn attacks alone, double its power and toughness until end of turn.

When Guardians of Koilos enters the battlefield, you may return another target historic permanent you control to its owner's hand. (Artifacts, legendaries, and Sagas are historic.)

Trample
Whenever you cast a spell, if that spell was kicked, put a +1/+1 counter on Hallar, the Firefletcher, then Hallar deals damage equal to the number of +1/+1 counters on it to each opponent.

When Haphazard Bombardment enters the battlefield, choose four nonenchantment permanents you don't control and put an aim counter on each of them.
At the beginning of your end step, if two or more permanents you don't control have an aim counter on them, destroy one of those permanents at random.

Prevent the next 3 damage that would be dealt to any target this turn by a source of your choice. You gain 3 life.

At the beginning of combat on your turn, create a token that's a copy of equipped creature, except the token isn't legendary if equipped creature is legendary. That token gains haste.
Equip

Hinterland Harbor enters the battlefield tapped unless you control a Forest or an Island.
: Add or .

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — Create a 2/2 white Knight creature token with vigilance.
III — Knights you control get +2/+1 until end of turn.