Suspicious Bookcase

Defender
{3}, {T}: Target creature can't be blocked this turn.

Candlekeep Sage

Commander creatures you own have "When this creature enters or leaves the battlefield, draw a card."

Glacial Wall

Wall of Runes

Defender (This creature can't attack.)
When Wall of Runes enters the battlefield, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

High Alert

Each creature you control assigns combat damage equal to its toughness rather than its power.
Creatures you control can attack as though they didn't have defender.
{2}{W}{U}: Untap target creature.

Dawnbringer Cleric

When Dawnbringer Cleric enters the battlefield, choose one —
• Cure Wounds — You gain 2 life.
• Dispel Magic — Destroy target enchantment.
• Gentle Repose — Exile target card from a graveyard.

Charix, the Raging Isle

Spells your opponents cast that target Charix, the Raging Isle cost {2} more to cast.
{3}: Charix gets +X/-X until end of turn, where X is the number of Islands you control.

Flumph

Defender, flying
Whenever Flumph is dealt damage, you and target opponent each draw a card.

Steel Wall

Aegis of the Heavens

Target creature gets +1/+7 until end of turn.

Secret Door

Defender
{4}{U}: Venture into the dungeon. Activate only as a sorcery. (Enter the first room or advance to the next room.)

Kraken Hatchling

Indomitable Ancients

Tasseled Dromedary

Yoked Ox

Perimeter Captain

Defender
Whenever a creature you control with defender blocks, you may gain 2 life.

God-Pharaoh's Faithful

Whenever you cast a blue, black, or red spell, you gain 1 life.

Stoneskin

Flash
Enchant creature
Enchanted creature gets +0/+10.

Aegis Turtle

Rasaad yn Bashir

Each creature you control assigns combat damage equal to its toughness rather than its power.
Whenever Rasaad yn Bashir attacks, if you have the initiative, double the toughness of each creature you control until end of turn.
Choose a Background (You can have a Background as a second commander.)

Mentor of the Meek

Whenever another creature with power 2 or less enters the battlefield under your control, you may pay {1}. If you do, draw a card.

Hover Barrier

Crashing Drawbridge

Defender
{T}: Creatures you control gain haste until end of turn.

Geist of the Archives

Defender
At the beginning of your upkeep, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)

Slagwurm Armor

Equipped creature gets +0/+6.
Equip {3} ({3}: Attach to target creature you control. Equip only as a sorcery. This card enters the battlefield unattached and stays on the battlefield if the creature leaves.)

Wall of Glare

Defender (This creature can't attack.)
Wall of Glare can block any number of creatures.

Wall of Omens

Defender
When Wall of Omens enters the battlefield, draw a card.

Zetalpa, Primal Dawn

Flying, double strike, vigilance, trample, indestructible

Expel the Interlopers

Choose a number between 0 and 10. Destroy all creatures with power greater than or equal to the chosen number.

Slaughter the Strong

Each player chooses any number of creatures they control with total power 4 or less, then sacrifices all other creatures they control.

Baldin, Century Herdmaster

As long as it's your turn, each creature assigns combat damage equal to its toughness rather than its power.
Whenever Baldin, Century Herdmaster attacks, up to one hundred target creatures each get +0/+X until end of turn, where X is the number of cards in your hand.

Nyx-Fleece Ram

At the beginning of your upkeep, you gain 1 life.

Wall of Denial

Defender, flying
Shroud (This creature can't be the target of spells or abilities.)

Angelic Wall

Defender (This creature can't attack.)
Flying

Riptide Turtle

The Birth of Meletis

(As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I — Search your library for a basic Plains card, reveal it, put it into your hand, then shuffle.
II — Create a 0/4 colorless Wall artifact creature token with defender.
III — You gain 2 life.