Triumph of Gerrard

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — Put a +1/+1 counter on target creature you control with the greatest power.
III — Target creature you control with the greatest power gains flying, first strike, and lifelink until end of turn.

Serra Disciple

Flying, first strike
Whenever you cast a historic spell, Serra Disciple gets +1/+1 until end of turn. (Artifacts, legendaries, and Sagas are historic.)

Enchant creature
Enchanted creature gets +2/+2, has first strike, and is a Knight in addition to its other types. (It deals combat damage before creatures without first strike.)

Skittering Surveyor

When Skittering Surveyor enters, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle.

Benalish Honor Guard

Benalish Honor Guard gets +1/+0 for each legendary creature you control.

Forest

Teshar, Ancestor's Apostle

Flying
Whenever you cast a historic spell, return target creature card with mana value 3 or less from your graveyard to the battlefield. (Artifacts, legendaries, and Sagas are historic.)

Evra, Halcyon Witness

Lifelink
{4}: Exchange your life total with Evra, Halcyon Witness's power.

Plains

Shanna, Sisay's Legacy

Shanna, Sisay's Legacy can't be the target of abilities your opponents control.
Shanna gets +1/+1 for each creature you control.

Seal Away

Flash
When Seal Away enters, exile target tapped creature an opponent controls until Seal Away leaves the battlefield.

Jousting Lance

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

Gideon's Reproach

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

Lyra Dawnbringer

Flying, first strike, lifelink
Other Angels you control get +1/+1 and have lifelink.

Sergeant-at-Arms

Kicker {2}{W} (You may pay an additional {2}{W} as you cast this spell.)
When Sergeant-at-Arms enters, if it was kicked, create two 1/1 white Soldier creature tokens.

Verdant Force

At the beginning of each upkeep, create a 1/1 green Saproling creature token.

Kwende, Pride of Femeref

Double strike
Creatures you control with first strike have double strike.

Icy Manipulator

{1}, {T}: Tap target artifact, creature, or land.

Serra Angel

Gaea's Protector

Gaea's Protector must be blocked if able.

Mammoth Spider

Reach (This creature can block creatures with flying.)

Yavimaya Sapherd

When Yavimaya Sapherd enters, create a 1/1 green Saproling creature token.