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

If a creature you control attacking causes a triggered ability of a permanent you control to trigger, if that creature is attacking alone, that ability triggers two additional times.

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}

Whenever a creature you control becomes the target of a spell or ability that targets only it, you may copy that spell or ability for each other creature you control that spell or ability could target. Each copy targets a different one of those creatures. Do this only once each turn.

Level up {2}{U}
[level 1-2] If an ability of a permanent you control triggers, it triggers an additional time.
[level 3+] If an ability of a permanent you control triggers, it triggers two additional times.

Flash
When Conduit of Change enters, if you cast it, return all other nonland permanents to their owner's hands.
Spellcharge 7

Time loop
I — Up to one other target nonland permanent phases out.
II — Draw two cards.
III — Create a blue enchantment token named Time Bubble with “Spells you cast cost {1} more to cast.”

Flying
When this creature enters, exile up to one target nontoken creature you don't control.
When this creature leaves the battlefield, the exiled card's owner draws X cards and gains X life, where X is half that card's mana value, rounded up.

Flash
Whenever Convol enters or attacks, untap target creature you control. Until end of turn, it has base power and toughness 5/5 and gains hexproof and “Whenever this creature deals combat damage to a player, draw two cards.”

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 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.

Vigilance
Whenever this creature transforms into Crown Betrayer or another permanent you control transforms, Crown Betrayer gets +2/+0 and gains indestructible until end of turn.

[+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.”

Cryptolabe enters tapped.
{T}: Add {G}{U}. This mana can't be spent to cast spells from your hand.
Sacrifice Cryptolabe: You may cast target artifact, instant, or sorcery card from your graveyard. Activate only as a sorcery.

Whenever you attack, if Cursed Claymore entered this turn, attach it to target attacking creature.
Equipped creature gets +2/+1. As long as equipped creature is a Ruin, it's a creature in addition to its other types.
Equip {2}

Flying
Whenever Cybat becomes tapped, you gain 1 life.

Deathtouch
Ward—Pay 4 life.
Whenever Cybele of the Frozen Faith deals combat damage to a player, you may skip your next turn. If you do, at the beginning of your next turn's upkeep, each opponent discards their hand, you draw seven cards, then put seven +1/+1 counters on Cybele.

Flying
Whenever a creature you control attacks alone, if a creature you control that isn't attacking has flying, the attacking creature gains flying until end of turn. The same is true for first strike, double strike, deathtouch, hexproof, indestructible, lifelink, menace, protection, and trample.

Vigilance
Whenever Darisha enters or attacks, create a white enchantment token named Stratagem with “Creatures you control get +1/+1.”

This artifact enters tapped.
{T}: Add one mana of any color. Spend this mana only to cast Subroutine spells.
{4}, {T}: Draw a card. This ability costs {1} less to activate for each time a Subroutine ran under your control this turn.

First strike
Whenever Dated Mechanoid becomes tapped, another target creature you control gets +1/+1 until end of turn.

Ward {2}
At the beginning of your upkeep, put a +1/+1 counter on Decavolt Reactor.

You may cast this spell as though it had flash by sacrificing a creature in addition to its other costs. If you do, when it enters, attach it to target creature you control.
Equipped creature gets +2/+0 and has “Whenever this creature deals combat damage to a player, that player discards a card.”
Equip—Pay 2 life.

Equipped creature gets +2/+0.
Whenever equipped creature attacks, make a pledge.
Equip {3}