+1: Return up to one target land card from your graveyard to your hand.
−1: Wrenn and Six deals 1 damage to any target.
−7: You get an emblem with "Instant and sorcery cards in your graveyard have retrace." (You may cast instant and sorcery cards from your graveyard by discarding a land card in addition to paying their other costs.)

Flying
Creatures you control have "Whenever this creature becomes the target of a spell or ability for the first time each turn, counter that spell or ability."

This land enters tapped unless you have two or more opponents.
: Add or .

: Add .
, Sacrifice a creature: Add .

Flying, vigilance, deathtouch, lifelink
At the beginning of your end step, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)

During your turn, your opponents can't cast spells or activate abilities of artifacts, creatures, or enchantments.

: Scry 1, then reveal the top card of your library. If it's a land card, put it onto the battlefield tapped. Otherwise, draw a card.
Partner (You can have two commanders if both have partner.)

This land enters tapped unless you control a Mountain.
: Add .
, , Exert this land: Add . If that mana is spent on a creature spell, it gains haste until end of turn. (An exerted permanent won't untap during your next untap step.)

: Add one mana of any color in your commander's color identity.

Whenever this creature blocks or becomes blocked by a non-Wall creature, destroy that creature at end of combat.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

: Target artifact creature's controller sacrifices it. That player may search their library for a noncreature artifact card, put it onto the battlefield, then shuffle.

Reach, vigilance, trample
When Zacama enters, if you cast it, untap all lands you control.
: Zacama deals 3 damage to target creature.
: Destroy target artifact or enchantment.
: You gain 3 life.

Flying
Spells your opponents cast that target this creature cost an additional 3 life to cast.
Whenever another creature you control enters, this creature deals damage equal to that creature's power to any target.

Trample
When Etali enters, each player exiles cards from the top of their library until they exile a nonland card. You may cast any number of spells from among the nonland cards exiled this way without paying their mana costs.
: Transform Etali. Activate only as a sorcery.

Search your library for an artifact card, reveal it, put it into your hand, then shuffle.

Equipped creature gets +1/-1.
Whenever equipped creature dies, draw two cards.
Equip

: Choose a color. Add one mana of that color unless any player pays . Activate only as an instant.

Flying
Whenever one or more other creatures you control with power 2 or less enter, draw a card. This ability triggers only once each turn.

Equipped creature gets +3/+3 and has protection from each color that's not in your commander's color identity.
Equip commander
Equip