Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)

: Untap target Forest.

If an opponent controls seven or more lands, this spell costs less to cast.

Flying

: Avatar of Fury gets +1/+0 until end of turn.

If an opponent controls at least four more creatures than you, this spell costs less to cast.

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.)

If there are ten or more creature cards total in all graveyards, this spell costs less to cast.

Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)

: Destroy target creature. It can't be regenerated.

Living weapon (When this Equipment enters the battlefield, create a 0/0 black Phyrexian Germ creature token, then attach this to it.)

Equipped creature gets +4/+4 and has vigilance and lifelink.

: Return Batterskull to its owner's hand.

Equip

: Add .

Whenever a player taps a nonbasic land for mana, Burning Earth deals 1 damage to that player.

Draw three cards.

Counter target spell.

A player who controls more permanents than each other player can't play lands or cast artifact, creature, or enchantment spells. That player may sacrifice a permanent for that player to ignore this effect until end of turn.

, , Discard a card: Prevent all combat damage that would be dealt this turn.

Until end of turn, target creature becomes black, gets +1/-1, and gains ": Regenerate this creature."

Target creature gains double strike until end of turn. (It deals both first-strike and regular combat damage.)

Flying

Whenever Emissary of Despair deals combat damage to a player, that player loses 1 life for each artifact they control.

Target player reveals their hand. You choose a nonbasic land card from it. That player discards that card.

Kicker <I>(You may pay an additional </I><I> as you cast this spell.)</I>

If Faerie Squadron was kicked, it enters the battlefield with two +1/+1 counters on it and with flying.

Flame Jab deals 1 damage to any target.

Retrace (You may cast this card from your graveyard by discarding a land card in addition to paying its other costs.)

Sacrifice Fulminator Mage: Destroy target nonbasic land.

Each creature you control can block an additional creature each combat.

Haste

At the beginning of the end step, sacrifice Ichorid.

At the beginning of your upkeep, if Ichorid is in your graveyard, you may exile a black creature card other than Ichorid from your graveyard. If you do, return Ichorid to the battlefield.

Target player reveals their hand. You choose a nonland card from it with mana value 3 or less. That player discards that card.

Whenever an opponent casts a spell, Kaervek the Merciless deals damage equal to that spell's mana value to any target.

+1: Create a tapped Powerstone token. (It's an artifact with ": Add . This mana can't be spent to cast a nonartifact spell.")

−1: Pay any amount of mana. Look at that many cards from the top of your library, then put one of those cards into your hand and the rest on the bottom of your library in a random order.

−7: You get an emblem with "Tap an untapped artifact you control: This emblem deals 1 damage to any target."

: Destroy target creature blocking Knight of Dusk.

Flying, vigilance, haste

, : Target player draws a card, then discards a card. If that player discards an artifact card this way, untap Lumengrid Augur.

Flying

Whenever Merfolk Skyscout attacks or blocks, untap target permanent.

Target opponent reveals cards from the top of their library until four land cards are revealed. That player puts all cards revealed this way into their graveyard.

: Untap Morphling.

: Morphling gains flying until end of turn.

: Morphling gains shroud until end of turn. (It can't be the target of spells or abilities.)

: Morphling gets +1/-1 until end of turn.

: Morphling gets -1/+1 until end of turn.

At the beginning of your upkeep, put a +1/+1 counter on Necroplasm.

At the beginning of your end step, destroy each creature with mana value equal to the number of +1/+1 counters on Necroplasm.

Dredge 2 (If you would draw a card, you may mill two cards instead. If you do, return this card from your graveyard to your hand.)

Trample

When Nesting Wurm enters the battlefield, you may search your library for up to three cards named Nesting Wurm, reveal them, put them into your hand, then shuffle.

Whenever you cast a Spirit or Arcane spell, you may destroy target nonbasic land.

Flying

When Overseer of the Damned enters the battlefield, you may destroy target creature.

Whenever a nontoken creature an opponent controls dies, create a tapped 2/2 black Zombie creature token.

, Pay 2 life: Return target creature card from your graveyard to your hand.

Hellbent — , Sacrifice a creature or land: Draw a card. Activate only if you have no cards in hand.

Ruthless Cullblade gets +2/+1 as long as an opponent has 10 or less life.

Cycling (, Discard this card: Draw a card.)

At the beginning of your upkeep, you may put a verse counter on Serra's Liturgy.

, Sacrifice Serra's Liturgy: Destroy up to X target artifacts and/or enchantments, where X is the number of verse counters on Serra's Liturgy.

Flying

Whenever Shrieking Specter attacks, defending player discards a card.

, , Discard a card: Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle.

When you cast a creature spell, sacrifice Skittering Monstrosity.

Flying

When Sky Swallower enters the battlefield, target opponent gains control of all other permanents you control.

Flying

Spells and abilities your opponents control can't cause you to sacrifice permanents.

As Teferi's Moat enters the battlefield, choose a color.

Creatures of the chosen color without flying can't attack you.

You have no maximum hand size.

: Add .

When Tidehollow Sculler enters the battlefield, target opponent reveals their hand and you choose a nonland card from it. Exile that card.

When Tidehollow Sculler leaves the battlefield, return the exiled card to its owner's hand.