Flash
When Primordial of Emila Glade enters the battlefield, return up to two instant and/or sorcery cards from your graveyard to your hand.
Once each turn, you may pay {U} rather than pay the mana cost for an instant or sorcery spell.

As an additional cost to cast spells during an opponent's turn, you may pay {U} and reveal Promethean Jaxl from your hand. If you do, you get a lurk counter.
Flash
Promethean Jaxl enters the battlefield tapped.
When Promethean Jaxl enters the battlefield, you draw a card for each lurk counter you have, then you lose all lurk counters.

Flash
This spell costs {1} less to cast for each permanent with flash you control and each instant card in your graveyard.
Ward {2}

Revolution's Juggernaut has haste as long as you control another Soldier.
Revolution's Juggernaut attacks each turn if able.

Hexproof from permanents

Scarred Primeval has vigilance and trample as long as you're ancient.

This spell can't be countered.
Hexproof
As long as you're ancient, creatures you control have trample and haste.

Whenever Skotha enters the battlefield or attacks, target player discards a card and you untap all lands you control.
{2}{B}{G}: Return Skotha from your graveyard to the battlefield, then put it on the bottom of its owner's library. Activate only as a sorcery.

Tempting Darkfiend enters the battlefield with a flying counter on it unless an opponent pays 2 life. The same is true for menace, deathtouch, lifelink, and indestructible counters.

When Truffletusk enters the battlefield, create a Food token.
Whenever you sacrifice a Food, you may create a 1/1 white Soldier creature token with vigilance.

Ward {3}
At the beginning of your end step, create a 1/1 green Goat Spirit creature token. For each kind of counter on Warden of Herds, you may put that many counters of that kind on that token.

At the beginning of combat on your turn, you may integrate another creature you control. If you don't, tap Xavvac, Corrupter Core.
Permanents you control with cards integrated onto them have lifelink and deathtouch.

Flash
When Zyxthax Apex enters the battlefield, each opponent loses 3 life and you gain 3 life.
When Zyxthax Apex leaves your graveyard, each opponent loses 3 life and you gain 3 life.

Vigilance
Whenever another creature you control dies, return to your hand target enchantment card from your graveyard with lesser mana value.

Trample
{T}, Pay 1 life: Add {C}.
Whenever Alranta Unleashed deals combat damage to a player, untap each Ruin you control. They become creatures in addition to their other types until the end of your next turn.
Spellcharge 6

Flying, menace
When Archon of Condemnation enters the battlefield, you may bless target creature.
At the beginning of your upkeep, you may sacrifice a creature. If you do, bless target creature.

Indestructible
As long as your devotion to white and black is less than seven, Athreos isn't a creature.
Whenever a creature dies, exile it with a coin counter on it. Each opponent loses 1 life and you gain 1 life.
Whenever Athreos attacks, put a creature card you exiled with a coin counter on it onto the battlefield under your control.

Flying
Drop — Whenever Avatar of the Airwaves or another creature enters the battlefield under your control, if the entering creature was cast and you didn't cast any creature spells during your last turn, create a token that's a copy of target non-Avatar creature you control.

Vigilance
Drop — Whenever Avatar of the Festival or another creature enters the battlefield under your control, if the entering creature was cast and you didn't cast any creature spells during your last turn, you may have your life total become the total power and toughness of creatures you control.

Barreling Bull can't be blocked by creatures with power 2 or less.
When Barreling Bull enters the battlefield, return a creature you control to its owner's hand.

Reach, haste
Drop — When Beat Devastator enters the battlefield, if you didn't cast any creature spells during your last turn, Beat Devastator gains vigilance until end of turn. Up to one target creature blocks it this turn if able.

Trample
When Belligerent Peluda enters the battlefield, it deals 2 damage to any target.

When Blasphemous Bonecaller enters the battlefield or dies, you draw a card and you lose 1 life.
{1}{B}, Discard Blasphemous Bonecaller: You draw a card and you lose 1 life.

Reach
Bumbling Bigfoot doesn't untap during your untap step.
Wander {1}{G}{G}

This spell costs {X} less to cast, where X is your greatest devotion to a single color.
Menace