Lands you control lose all mana abilities and have “{T}: This land deals 1 damage to any target.”
If a nonland source you control would deal damage, prevent that damage and create that many Treasure tokens.

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

When this Equipment enters, create a 1/1 white Citizen creature token, then attach this Equipment to it.
Equipped creature gets +2/+1 and has trample.
Equip {4}

Haste
Level up {2}{R}
[level 1-2] Haste
Whenever this creature attacks, it deals 2 damage to any target.
[level 3+] Haste
Whenever this creature attacks, it deals 5 damage to any target.

Fabric — This spell costs {1} less to cast for each enchantment you control.
Vigilance

Corrupt — When this creature enters, if it isn't a token and you control a permanent with greater mana value than it, create a token that's a copy of this creature.
{T}: Add {G}.

Congressional Hall enters tapped.
{T}: Add {W} or {U}.
{4}: Make a pledge. Activate only as a sorcery.

Gain control of up to two target creatures with total mana value 4 or less until end of turn. Untap one of them. It gains haste until end of turn.

Counter target activated ability from a nonland source.
Draw a card.

Enchant creature
Whenever enchanted creature deals combat damage to a player or planeswalker, you may sacrifice it. If you do, untap all creatures you control and after this phase, there is an additional combat phase.

Controlled Ecosystem enters tapped.
{T}: Add {G} or {U}.
{4}: Make a pledge. Activate only as a sorcery.

Menace
Whenever Corporate Mentor attacks, teach target attacking creature with lesser power menace.

When Cosmic Colossus enters, if you cast it from your hand, cast a copy of target card in exile without paying its mana cost unless an opponent exiles two nonland permanents they control.

{T}: Add {C}.
{1}, {T}, Sacrifice Cradle of Rebirth: Copy target spell you control which had its flashback cost paid. You may choose new targets for the copy.

Whenever a Subroutine you control runs, exile the top card of your library face-down.
{R}, Discard your hand, Sacrifice this enchantment: Put all cards exiled with this enchantment into your hand.

{T}: Add one mana of any color.
{T}: Draw a card, then discard a card. Activate only if you've cast a non-Human creature spell this turn.

Crucible Takedown deals damage to target creature equal to the greatest mana value among permanents you control. Surveil 2.

Landfall — Whenever a land you control enters, exile the top card of your library. You may play that card until the end of your next turn.
{1}{R}, Sacrifice Crumbling Tower: It deals damage equal to the number of cards exiled with it to target player.

Destroy target artifact or land.
Flashback {4}{R}{R}

[+1]: Crux deals 1 damage to target player or planeswalker. Put a chain counter on up to one target artifact or nonbasic land. It loses all abilities except mana abilities as long as it has a chain counter on it.
[–2]: Discard a card. When you do, Crux deals damage equal to the discarded card's mana value to up to one target creature and you draw a card.
[–6]: Exile target red instant or sorcery card from your graveyard. Add {R}{R}{R}, then you get an emblem with “You may cast copies of the exiled card.”

Cryptic Reef enters tapped.
{T}: Add {G} or {U}.
{2}{G}{U}, {T}, Sacrifice Cryptic Reef: Draw a card.

Level up {1}{G}
[level 1-2] Whenever you cast a creature spell with power 3 or greater, draw a card.
[level 3+] Whenever you cast a creature spell with power 3 or greater, copy it.

Untap all lands you control. Until end of turn, they become 1/1 Elemental artifact creatures with vigilance, indestructible, and haste in addition to their other types.

Dark Horizon enters tapped.
{T}: Add {C} or {B}.
{1}, Discard Dark Horizon: Scry 2.

Exile all creatures and all cards from each player's hand. Any player may play those cards during their turn for as long as they remain exiled, and mana of any type can be spent to cast those spells.
Exile Dawn of Peace.