Secrets of Strixhaven Commander

Pegasus

Creature — Archon

Flying
Lifelink (Damage dealt by this creature also causes you to gain that much life.)
Pegasus creatures you control have lifelink.
Constellation — Whenever an enchantment you control enters, create a 2/2 white Pegasus creature token with flying.

Archon of Sun's Grace

Enchantment Creature — Giant

Constellation — Whenever this creature or another enchantment you control enters, creatures your opponents control get -1/-1 until end of turn.

Doomwake Giant

Foundations Jumpstart

Enchantment Creature — Spirit

Vigilance
Constellation — Whenever this creature or another enchantment you control enters, choose target creature you control. Until end of turn, that creature has base power and toughness 4/4 and gains flying.

Eidolon of Astral Winds

Creature — Unicorn

Constellation — Whenever an enchantment you control enters, tap target creature an opponent controls.

Captivating Unicorn

Creature — Human Soldier

Constellation — Whenever an enchantment you control enters, this creature gains double strike until end of turn. (It deals both first-strike and regular combat damage.)

Favored of Iroas

Wilds of Eldraine Commander

Constellation — Whenever this creature or another enchantment you control enters, draw a card.

Eidolon of Blossoms

Creature — Human Warrior

Constellation — Whenever an enchantment you control enters, put a +1/+1 counter on this creature and draw a card.

Setessan Champion

Commander Masters

Enchantment

Constellation — Whenever this enchantment or another enchantment you control enters, put a blessing counter on this enchantment.
Creatures you control get +1/+1 for each blessing counter on this enchantment.

Boon of the Spirit Realm

Creature — Satyr Bard

Constellation — Whenever an enchantment you control enters, you may put a land card from your hand onto the battlefield tapped. If you control six or more enchantments, instead you may put a creature or land card from your hand onto the battlefield tapped.

Composer of Spring

Creature — Satyr Scout

Constellation — Whenever an enchantment you control enters, look at the top three cards of your library. You may reveal a land card from among them and put that card into your hand. Put the rest on the bottom of your library in a random order.

Nessian Wanderer

March of the Machine: The Aftermath

Calix, Guided by Fate

Copy

Legendary Enchantment Creature — Human Druid

Constellation — Whenever Calix or another enchantment you control enters, put a +1/+1 counter on target creature.
Whenever Calix or an enchanted creature you control deals combat damage to a player, you may create a token that's a copy of a nonlegendary enchantment you control. Do this only once each turn.

March of the Machine Commander

Plane — Theros

Nontoken creatures are enchantments in addition to their other types.
Constellation — Whenever an enchantment you control enters, you gain 1 life.
Whenever chaos ensues, choose a color. Add an amount of mana of that color equal to your devotion to that color.

Jumpstart 2022

Creature — Human Scout

Constellation — Whenever an enchantment you control enters, target creature gets +1/+1 until end of turn.

Pious Wayfarer

The List

Legendary Creature — Human Wizard

Constellation — Whenever an enchantment you control enters, put a +1/+1 counter on target creature. That creature gains flying until end of turn.

Eutropia the Twice-Favored

Enchantment Creature — Nymph

Constellation — Whenever this creature or another enchantment you control enters, target creature gains intimidate until end of turn. (It can't be blocked except by artifact creatures and/or creatures that share a color with it.)

Dreadbringer Lampads

Enchantment Creature — Human Cleric

Constellation — Whenever this creature or another enchantment you control enters, you gain 1 life.
{W}{B}, Pay 1 life: Each opponent loses 1 life.

Underworld Coinsmith

Theros Beyond Death Promos

Creature — Human Wizard

Constellation — Whenever an enchantment you control enters, you may have this creature become a copy of another target creature, except it has this ability.

Protean Thaumaturge

Theros Beyond Death

Constellation — Whenever an enchantment you control enters, target player mills two cards.

Sage of Mysteries

Creature — Kraken

Constellation — Whenever an enchantment you control enters, you may draw a card. If you do, discard a card.

Shoal Kraken

Creature — Merfolk Wizard

Constellation — Whenever an enchantment you control enters, this creature gains flying until end of turn.

Triton Waverider

Creature — Satyr Archer

Reach
Constellation — Whenever an enchantment you control enters, you gain 2 life.

Nexus Wardens

Constellation — Whenever an enchantment you control enters, this creature gets +1/+1 until end of turn.

Setessan Skirmisher

Commander 2018

Constellation — Whenever this creature or another enchantment you control enters, double target creature's power and toughness until end of turn.

Nylea's Colossus

Constellation — Whenever this creature or another enchantment you control enters, target creature can't be blocked this turn.

Whitewater Naiads

Commander 2015

Constellation — Whenever this enchantment or another enchantment you control enters, this enchantment becomes a 5/5 Demon creature with flying and haste in addition to its other types until end of turn.

Daxos's Torment

Journey into Nyx

Constellation — Whenever this creature or another enchantment you control enters, prevent all damage that would be dealt to target creature this turn.

Harvestguard Alseids

Constellation — Whenever this enchantment or another enchantment you control enters, exile target nonenchantment permanent. Return that card to the battlefield under its owner's control at the beginning of the next end step.

Skybind

Enchantment Creature — Elemental

Constellation — Whenever this creature or another enchantment you control enters, target player mills two cards.

Thassa's Devourer

Enchantment Creature — Zombie

Constellation — Whenever this creature or another enchantment you control enters, exile target player's graveyard.

Agent of Erebos

Constellation — Whenever this creature or another enchantment you control enters, each opponent loses 1 life.

Grim Guardian

Enchantment Creature — Lamia

Constellation — Whenever this creature or another enchantment you control enters, each opponent discards a card.

Thoughtrender Lamia

Constellation — Whenever this creature or another enchantment you control enters, this creature deals 1 damage to any target.

Forgeborn Oreads

Enchantment Creature — Ox

Constellation — Whenever this creature or another enchantment you control enters, target creature must be blocked this turn if able.

Goldenhide Ox

Constellation — Whenever this creature or another enchantment you control enters, creatures you control gain trample until end of turn.

Humbler of Mortals

Enchantment Creature — Nymph Dryad

Constellation — Whenever this creature or another enchantment you control enters, target creature gets +1/+1 until end of turn.

Oakheart Dryads

Constellation — Whenever this enchantment or another enchantment you control enters, target creature gets +X/+X until end of turn, where X is the number of creature cards in your graveyard.