Flash
When Agent of Deception enters the battlefield, counter target creature or planeswalker spell unless its controller pays {X}, where X is your devotion to blue.

Whenever a player attacks with two or more creatures, create a Treasure token.
Whenever a player casts their second spell each turn, create a 1/1 colorless Cyborg artifact creature token.
Cybersoul {7}{W}{B}

At the beginning of each opponent's upkeep, that player may pay life equal to the number of pain counters they have plus 1. If they don't, look at their hand, choose a card from it, and exile that card. If they do, that player gets a pain counter.
You may cast cards exiled with Alehana, and mana of any type can be spent to cast them.

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

Ward {2}
At the beginning of your end step, if it's not an extra turn and you've cast three or more instant or sorcery spells with different mana values this turn, take an extra turn after this one.

Reach
If a creature you control would deal combat damage to a permanent or player, you may have it deal damage equal to your devotion to green instead.

Whenever a creature dies, you draw a card and you lose 1 life.
At the beginning of your end step, put a decay counter on Arcet. It deals X damage to each player, planeswalker, and other creature, where X is the number of decay counters on it.
Escape—{4}{B}{B}{B}, Exile the top thirteen cards of your library.

Distribute a trample counter, a vigilance counter, a reach counter, and a deathtouch counter among any number of creatures you control. Then draw a card for each creature you control with one or more counters on it.

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.

Menace
Drop — Whenever Avatar of the Decks or another creature enters the battlefield under your control, if the entering creature was cast, sacrifice a permanent unless you didn't cast any creature spells during your last turn.

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.

Haste
Drop — Whenever Avatar of the Moshpit 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, discard your hand, then draw three cards.

Reach
Drop — Whenever Avatar of the Rave 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, return up to two target cards from your graveyard to your hand.

You don't lose unspent mana as steps and phases end.
At the beginning of your end step, if you've spent at least five mana to cast spells this turn, draw a card. If you've spent at least ten, create a 10/10 green Elemental creature token. If you spent at least twenty, you gain 20 life. If you spent at least fifty, you win the game.

As Bind in Silence enters the battlefield, choose a nonland card name.
Spells with the chosen name can't be cast.
When Bind in Silence is put into a graveyard from the battlefield, your opponents can't cast spells this turn.

Flying, trample
When Blooming Cocollona enters the battlefield, you may have it deal 3 damage to another target creature or planeswalker. If you do, that permanent's controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

All spells cost {1} more to cast.
Spellcharge 6

Take an extra turn after this one. Put Captivating Dreams on the bottom of your library.
If Captivating Dreams would be put into a graveyard from anywhere, exile it instead.

Wander {2}{W}{W}
[–1]: Create your choice of a 1/1 white Bird creature token with flying or a 2/2 black Cat creature token.
[–2]: If a permanent entering the battlefield under your control this turn causes an ability of a permanent you control to trigger, that ability triggers an additional time.
[–3]: Put a +1/+1 counter on each creature you control.

[+1]: Up to one target creature you control dares 4 and gains vigilance until end of turn.
[–2]: Cathette deals 2 damage to any target and you gain 2 life. Target player creates two 1/1 white Warrior creature tokens.
[–6]: You get an emblem with “At the end of the first combat phase on each of your turns, untap each creature you control. After this phase, there is an additional combat phase.”

At the beginning of your end step, for each opponent with an even number of cards in hand, they lose 3 life and you gain 3 life.
[+1]: Target player draws a card and loses 1 life.
[–4]: Target opponent exiles one or more cards from their hand. Then you may have that player exchange their hand and the exiled cards.

Vigilance
Whenever Cerys attacks, you may return a nontoken permanent you control to its owner's hand. If you do, create two 1/1 red Soldier creature tokens that are tapped and attacking.

Flying, haste
When Chainbreaker's Familiar enters, exile target instant or sorcery card from your graveyard. You may cast a copy of that card until the end of your next turn.
At the beginning of combat on your turn, if you've spent at least five mana to cast spells this turn, you may return Chainbreaker's Familiar from your graveyard to your hand.

Creatures you control have ward {2}.
[+1]: Scry 2. You may put a loyalty counter on another planeswalker you control.
[–1]: Create a 0/0 white Army creature token, then put a +1/+1 counter on each Army you control.
[–6]: Exile target nonland permanent.