Flying, ward {1}
Whenever you cast an instant or sorcery spell, mill a card. Return an instant or sorcery card milled this way to your hand. If you can't, put a +1/+1 counter on Covetous Frostwyrm.

{2}, Sacrifice another creature: Put a +1/+1 counter on Coward-Eater. Draw a card.

Trample
Whenever one or more creatures you control with trample deal combat damage to a player or planeswalker, put a +1/+1 counter on target creature you control.

The next spell you cast this turn may be cast as though it had flash. When you cast that spell, copy it. You may choose new targets for the copy.
Flashback {3}{U}{U}

[+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.”

Integrate each nontoken creature you don't control with power 2 or less.

Whenever you attack, if Cursed Claymore entered the battlefield 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}

Flash
Whenever you cast a spell during an opponent's turn, scry 1 and put a +1/+1 counter on Cutthroat Kallukah.

When Data Weaver enters, integrate the top two cards of target opponent's library.
You may play cards that are integrated onto permanents you control, and mana of any type can be spent to cast them.

Target player discards two cards. Exile their graveyard.

Trample
Whenever you draw a card except the first one you draw in each of your draw steps, put a +1/+1 counter on Deadwood Cult.

Indulgence
Whenever you indulge, put a +1/+1 counter on target creature you control.

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 the battlefield, 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.

Draw two cards.
Escape—{3}{U}{U}, Exile four other cards from your graveyard.

Enchanted creatures you control get +2/+2 until end of turn. Other creatures you control get +2/+0 until end of turn.

Create a 1/1 colorless Construct artifact creature token, then put a +1/+1 counter on each Construct you control.

Whenever one or more creatures you control deal combat damage to a player, you draw a card unless that player discards a card.
{X}: Creatures with power X or less can't block this turn.

Whenever another artifact enters the battlefield under your control, you may tap or untap target creature.

When Disguising Barber enters the battlefield, you may have another target creature you control become a copy of any creature on the battlefield for as long as you control Disguising Barber.

Add {W}{U}{B}{R}.

This spell can't be countered except by spells named Diss Track.
Counter target spell.

Counter target spell.
Draw a card if you control a legendary permanent.

Mill two cards. Each opponent discards two cards and loses 2 life.

When Dream Catcher enters the battlefield, return target exiled card with flashback you own to your hand.