Cephalid Retainer

{U}{U}: Tap target creature without flying.

Island

Embolden

Prevent the next 4 damage that would be dealt this turn to any number of targets, divided as you choose.
Flashback {1}{W} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Angelic Wall

Defender (This creature can't attack.)
Flying

Shelter

Target creature you control gains protection from the color of your choice until end of turn.
Draw a card.

Beloved Chaplain

Peek

Look at target player's hand.
Draw a card.

Hallowed Healer

{T}: Prevent the next 2 damage that would be dealt to any target this turn.
Threshold — {T}: Prevent the next 4 damage that would be dealt to any target this turn. Activate only if seven or more cards are in your graveyard.

Cephalid Looter

{T}: Target player draws a card, then discards a card.

Second Thoughts

Exile target attacking creature.
Draw a card.

Cephalid Broker

{T}: Target player draws two cards, then discards two cards.

Millikin

{T}, Mill a card: Add {C}. (To mill a card, put the top card of your library into your graveyard.)

Nomad Decoy

{W}, {T}: Tap target creature.
Threshold — {W}{W}, {T}: Tap two target creatures. Activate only if seven or more cards are in your graveyard.

Blessed Orator

Abandoned Outpost

This land enters tapped.
{T}: Add {W}.
{T}, Sacrifice this land: Add one mana of any color.

Pilgrim of Justice

Protection from red
{W}, Sacrifice this creature: The next time a red source of your choice would deal damage this turn, prevent that damage.

Mystic Visionary

Threshold — This creature has flying as long as seven or more cards are in your graveyard.

Syncopate

Counter target spell unless its controller pays {X}. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.

Seafloor Debris

This land enters tapped.
{T}: Add {U}.
{T}, Sacrifice this land: Add one mana of any color.

Cephalid Scout

Flying
{2}{U}, Sacrifice a land: Draw a card.

Kirtar's Desire

Enchant creature
Enchanted creature can't attack.
Threshold — Enchanted creature can't block as long as seven or more cards are in your graveyard.

Plains

Mystic Crusader

Protection from black and from red
Threshold — As long as seven or more cards are in your graveyard, this creature gets +1/+1 and has flying.

Think Tank

At the beginning of your upkeep, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Mystic Zealot

Threshold — As long as seven or more cards are in your graveyard, this creature gets +1/+1 and has flying.

Aven Windreader

Flying (This creature can't be blocked except by creatures with flying or reach.)
{1}{U}: Target player reveals the top card of their library.

Skycloud Egg

{2}, {T}, Sacrifice this artifact: Add {W}{U}. Draw a card.

Mystic Penitent

Vigilance
Threshold — As long as seven or more cards are in your graveyard, this creature gets +1/+1 and has flying.