Skittering Surveyor

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

Benalish Honor Guard

This creature gets +1/+0 for each legendary creature you control.

Serra Disciple

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

Bloodtallow Candle

{6}, {T}, Sacrifice this artifact: Target creature gets -5/-5 until end of turn.

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.)

Short Sword

Equipped creature gets +1/+1.
Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Urza's Ruinous Blast

(You may cast a legendary sorcery only if you control a legendary creature or planeswalker.)
Exile all nonland permanents that aren't legendary.

Final Parting

Search your library for two cards. Put one into your hand and the other into your graveyard. Then shuffle.

Healing Grace

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

Isolated Chapel

This land enters tapped unless you control a Plains or a Swamp.
{T}: Add {W} or {B}.

Call the Cavalry

Create two 2/2 white Knight creature tokens with vigilance.

Aven Sentry

Swamp

Feral Abomination

Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)

Chainer's Torment

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — This Saga deals 2 damage to each opponent and you gain 2 life.
III — Create an X/X black Nightmare Horror creature token, where X is half your life total, rounded up. It deals X damage to you.

Gideon's Reproach

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

Deathbloom Thallid

When this creature dies, create a 1/1 green Saproling creature token.

Baird, Steward of Argive

Vigilance
Creatures can't attack you or planeswalkers you control unless their controller pays {1} for each of those creatures.

Memorial to Glory

This land enters tapped.
{T}: Add {W}.
{3}{W}, {T}, Sacrifice this land: Create two 1/1 white Soldier creature tokens.

Excavation Elephant

Kicker {1}{W} (You may pay an additional {1}{W} as you cast this spell.)
When this creature enters, if it was kicked, return target artifact card from your graveyard to your hand.

Plains

Arvad the Cursed

Deathtouch, lifelink
Other legendary creatures you control get +2/+2.

Aryel, Knight of Windgrace

Vigilance
{2}{W}, {T}: Create a 2/2 white Knight creature token with vigilance.
{B}, {T}, Tap X untapped Knights you control: Destroy target creature with power X or less.