Target opponent loses 3 life unless they discard a nonland card, then loses 3 life unless they sacrifice a nonland permanent. You gain life equal to the amount of life lost this way.

{T}: Add one mana of any color.
Whenever Chains of Broken Oaths becomes spellcharged, untap it.
Spellcharge 7

Charge Beam deals 4 damage to target creature or planeswalker.
Amity — If you attacked with exactly two creatures this turn, Charge Beam deals 2 damage to that permanent's controller.

Amity — Whenever you attack with Charged Party and exactly one other creature, create a token that's a copy of Charged Party that's tapped and attacking, except its power and toughness are switched. Sacrifice the token at the beginning of the next end step.

{W}: Charismatic Chameleon gains lifelink until end of turn.
{1}{R}: Charismatic Chameleon gets +1/+1 until end of turn.
{2}{U}: Charismatic Chameleon can't be blocked this turn.

Corrupt — When this creature enters, if you control a permanent with greater mana value, create two 1/1 white Citizen creature tokens.

Choose up to X, where X is one plus the number of creatures you control with level counters on them.
• Each opponent discards two cards.
• Creatures your opponents control get -1/-1 until end of turn.
• Each opponent loses 3 life and you gain 3 life.

Flying
When this creature enters, you may return another creature or Subroutine you control to its owner's hand.

Lifelink
{1}{W}: Put a stun counter on target creature that attacked this turn. Activate only once each turn.

At the beginning of combat each turn, untap this creature.

You may cast this spell without paying its mana cost if your devotion to black is four or greater.
Deathtouch
Whenever Chrolcatos deals combat damage to player, you draw a card and you lose 1 life.

When Chromatic Hart enters, you may exile target card from a graveyard.
{T}: Add one mana of any color.

Choose one. If this spell's flashback cost was paid, instead choose three and you may choose the same mode more than once.
• Destroy target artifact.
• This spell deals 3 damage to any target.
• You may discard one or more cards. If you do, draw that many cards plus one.
Flashback {7}{R}{R}

Choose one. If this spell's flashback cost was paid, instead choose three and you may choose the same mode more than once.
• Draw two cards.
• Create a token that's a copy of target artifact or creature you control.
• Target player mills seven cards.
Flashback {6}{U}{U}

When Cliffside Scrappers enters, destroy target artifact an opponent controls.
Wander {3}{R}{R}

When Cliffwalker enters, return a permanent you control to its owner's hand.
Wander {1}{W}

Destroy target creature if it has power 3 or less or if you control a creature with flying.

Codename: Bumblebee enters with a +1/+1 counter and a flying counter on it.
At the beginning of your upkeep, you may move a counter from Codename: Bumblebee onto another creature.

When Coercive Contractor enters, create a Treasure token.
{X}, {T}, Sacrifice a Treasure: Gain control of target nontoken creature with mana value X until end of turn. Untap that creature. It gains haste until end of turn. Activate only as a sorcery.

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.

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.

Enchant creature
Enchanted creature can't attack or block, and its activated abilities can't be activated unless they're mana abilities.
Enchanted creature has “At the beginning of your upkeep, you lose 1 life.”

Choose one —
• Target creature gets +2/+0 and gains indestructible until end of turn.
• Target player sacrifices a creature.

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.”