Menace
Error spells you cast cost {X} less to cast, where X is the total amount of life your opponents have lost this turn.

Whenever you cast a spell, you may pay {X}, where X is that spell's mana value. If you do, copy it. You may choose new targets for the copy. Do this only once each turn.

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 tapped.
When Promethean Jaxl enters, you draw a card for each lurk counter you have, then you lose all lurk counters.

{T}: Add {C}. If this land entered this turn, you may add one mana of any color instead.
{4}, {T}: Create a tapped 1/1 colorless Fox Shapeshifter creature token with changeling.

As this creature enters, choose a creature type.
This creature is the chosen creature type in addition to its other types.
{2}: This creature becomes a copy of another target creature you control of the chosen type until end of turn.

This spell costs {1} less to cast for each card in exile you don't own.
Trample
Ward—Exile a nonland, nontoken permanent you control.

Tap up to two target nonland permanents. They lose all abilities until your next turn.

Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn.
You choose which creatures block this turn and how those creatures block.

When Pursuer of Divinity enters, you may search your library for a double-faced card, reveal it, put it into your hand, then shuffle.
Cybersoul {4}{W}{B}

Flying
Whenever you cast a spell that targets a single creature you control, bless that creature.

Each creature you control gets +2/+1 as long as you control two or more other creatures with the same name as it.
{3}{C}, {T}: Create a token that's a copy of target creature you control.

Deathtouch
Whenever Qion enters or attacks, you may reveal the top two cards of your library. If you do, you gain life equal to their total mana value, put them into your hand, then lose 7 life.

Whenever you attack with exactly two creatures, draw a card. Prevent all damage that would be dealt to creatures you control this turn.

Exchange control of target spell or creature you control and target spell or creature an opponent controls. Controllers of spells exchanged this way may choose new targets for them.

Whenever this Subroutine runs, each player may shuffle their hand and graveyard into their library, then draw seven cards.

Solidarity
{1}{R}: Choose a creature type. Ragecloak Shifter gets +2/+0 and becomes that type in addition to its other types until end of turn.

Trample, ward {3}
Other Yetis you control get +1/+1.
At the beginning of combat on your turn, if you've spent at least five mana to cast spells this turn, create a 3/3 green Yeti creature token with trample.

Ward—Discard a card.
Whenever Reborn Fisher attacks, choose a nonland card name, then defending player reveals their hand and discards a card with that name if able.

Vigilance
Whenever Reborn Reef attacks, target card in your graveyard gains surface until end of turn. The surface cost is equal to its mana cost.

Trample
When this creature enters, separate your graveyard into two piles. An opponent chooses one of those piles. Put that pile into your hand and shuffle the other into your library.

Whenever Recurring Visions enters or you cast a spell which had its flashback cost paid, surveil 3.

Menace
Corrupt — When this creature enters, if you control a permanent with greater mana value, exile the top card of your library. You may play it on any turn a creature you control dealt damage to a player.

You gain X life, then look at the top X cards of your library, where X is the greatest mana value among permanents you control. Reveal up to two creature, enchantment, and/or land cards from among them and put them into your hand. Put the rest on the bottom in a random order.

Other creatures you control get +1/+1 and have vigilance.
Spellcharge 5

Reach
Replicrawler gets +1/+1 for each other artifact creature you control.
If you would create a token, you may pay {B}. If you do, create a token that's a copy of Replicrawler instead.