Return all nonblue creatures to their owners' hands.

Landfall — Whenever a land you control enters, add one mana of any color. Then if this is the second time this ability has resolved this turn, reveal cards from the top of your library until you reveal an Elf or Elemental card. Put that card into your hand and the rest on the bottom of your library in a random order.

Impending 5— (If you cast this spell for its impending cost, it enters with five time counters and isn't a creature until the last is removed. At the beginning of your end step, remove a time counter from it.)
Whenever this permanent enters or attacks, mill four cards, then you may return a non-Avatar creature card or a planeswalker card from your graveyard to your hand.

Whenever a land enters, this artifact deals 2 damage to that land's controller.

Myojin of Night's Reach and Grim Betrayal enters the battlefield with an indestructible counter on it if you cast it from your hand.
Remove an indestructible counter from Myojin of Night's Reach and Grim Betrayal: Each opponent discards their hand. Put onto the battlefield under your control all creature cards in all graveyards that were put there from anywhere this turn.

( can be paid with either or .)
At the beginning of your upkeep, put target creature card from a graveyard onto the battlefield under your control.

Spells you cast cost less to cast if they were originally printed in the following expansions or associated commander decks, depending on who won the Unknown event on February 18th, 2023:
Mirran Victory — Mirrodin, Darksteel, Fifth Dawn, and Scars of Mirrodin.
Phyrexian Victory — Mirrodin Besieged, New Phyrexia, All Will be One, and March of the Machine.

Shock deals 2 damage to any target.

When Leech Medic enters the battlefield, create a Leeches token card and put it into your hand. (Leeches is a sorcery from Homelands that reads, "Target player loses all poison counters. Leeches deals that much damage to that player.")

Each land is a Forest in addition to its other land types.

Flying
Evolve (Whenever a creature you control enters, if that creature has greater power or toughness than this creature, put a +1/+1 counter on this creature.)
Whenever a creature you control with a counter on it deals combat damage to a player, draw a card.

Trample
Other Bears you control get +2/+2.
At the beginning of combat on your turn, put a trample counter on up to one target creature you control. It becomes a Bear in addition to its other types. Then if you control three or more Bears, draw two cards.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)
At the beginning of your upkeep, this creature deals 8 damage to you unless you pay .

Changeling (This card is every creature type.)
Protection from black
: This creature gets +X/+X until end of turn, where X is its power.

When this creature enters, gain control of target permanent.
At the beginning of your end step, if you control three or more permanents you don't own, draw three cards.

When this creature enters, earthbend 2. (Target land you control becomes a 0/0 creature with haste that's still a land. Put two +1/+1 counters on it. When it dies or is exiled, return it to the battlefield tapped.)
Land creatures you control have vigilance. (Attacking doesn't cause them to tap.)

You have no maximum hand size.
If an effect causes you to discard a card, discard it, but you may put it on top of your library instead of into your graveyard.

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When The Keeper of Four Scythes enters, create four Scythe tokens. (They're Equipment with "Equipped creature gets +1/+1" and equip .)
Equipped creatures you control get +1/+1.

Enchant Wall
Enchanted Wall can attack as though it didn't have defender.

Reveal the cards in your library. An opponent chooses from among them a creature card, a land card, and a noncreature, nonland card. You put the chosen cards into your hand. Then shuffle.