Whenever an opponent casts their first spell each turn, counter that spell.

Haste

Whenever Erdwal Ripper deals combat damage to a player, put a +1/+1 counter on it.

Indestructible

As long as your devotion to black is less than five, Erebos isn't a creature.

Whenever another creature you control dies, you may pay 2 life. If you do, draw a card.

, Sacrifice another creature: Target creature gets -2/-1 until end of turn.

Bestow (If you cast this card for its bestow cost, it's an Aura spell with enchant creature. It becomes a creature again if it's not attached to a creature.)

Discard a creature card: Erebos's Emissary gets +2/+2 until end of turn. If Erebos's Emissary is an Aura, enchanted creature gets +2/+2 until end of turn instead.

Enchanted creature gets +3/+3.

At the beginning of your end step, if Erg Raiders didn't attack this turn, Erg Raiders deals 2 damage to you unless it came under your control this turn.

Each creature that's enchanted by an Aura you control can't attack you or planeswalkers you control.

At the beginning of your end step, each opponent loses X life and you gain X life, where X is the number of Auras you control.

When Eriette's Tempting Apple enters, gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn.

, , Sacrifice Eriette's Tempting Apple: You gain 3 life.

, , Sacrifice Eriette's Tempting Apple: Target opponent loses 3 life.

This spell costs less to cast for each different mana value among instant and sorcery cards in your graveyard.

Flying, prowess

Whenever you cast your second spell each turn, create a 4/4 red Dragon Elemental creature token with flying and prowess.

Eroded Canyon enters tapped.

When Eroded Canyon enters, it deals 1 damage to target opponent.

: Add or .

When Errand-Rider of Gondor enters, draw a card. Then if you don't control a legendary creature, put a card from your hand on the bottom of your library.

: Tap target creature with toughness 2 or less.

Enchant creature

At the beginning of the upkeep of enchanted creature's controller, that player may pay any amount of mana. Errant Minion deals 2 damage to that player. Prevent X of that damage, where X is the amount of mana that player paid this way.

Enchant creature

Enchanted creature gets +3/+0 and can only attack alone.

Trample

Whenever you cast an instant or sorcery spell, Erratic Cyclops gets +X/+0 until end of turn, where X is that spell's mana value.

Choose target creature. Reveal cards from the top of your library until you reveal a nonland card. That creature gets +X/-X until end of turn, where X is that card's mana value. Put all cards revealed this way on the bottom of your library in any order.

, : Draw a card, then discard a card.

: Target spell becomes colorless.

: Target permanent becomes colorless until end of turn.

, , Sacrifice a creature or enchantment: Counter target spell.

Phasing (This phases in or out before you untap during each of your untap steps. While it's phased out, it's treated as though it doesn't exist.)

When Ertai's Familiar phases out or leaves the battlefield, mill three cards.

: Until your next upkeep, Ertai's Familiar can't phase out.

This spell costs less to cast if an opponent cast two or more spells this turn.

Counter target spell.

When Ertha Jo, Frontier Mentor enters, create a 1/1 red Mercenary creature token with ": Target creature you control gets +1/+0 until end of turn. Activate only as a sorcery."

Whenever you activate an ability that targets a creature or player, copy that ability. You may choose new targets for the copy.

Whenever Erupting Dreadwolf attacks, it deals 2 damage to any target.

Freerunning—Return a blue creature you control to its owner's hand. (You may cast this spell for its freerunning cost if you dealt combat damage to a player this turn with an Assassin or commander.)

Return target creature to its owner's hand.

Draw a card.

Whenever you cycle a card, you may pay . When you do, exile target artifact or creature you control, then return it to the battlefield under its owner's control.

Exile the top five cards of your library. You may play cards exiled this way until the end of your next turn.

You may play an additional land this turn.

Enchant creature

Enchanted creature gets +1/+0 and has haste.

Escape—, Exile two other cards from your graveyard. (You may cast this card from your graveyard for its escape cost.)

Lifelink

Whenever Escaped Null blocks or becomes blocked, it gets +5/+0 until end of turn.

Defender (This creature can't attack.)

Reach (This creature can block creatures with flying.)

Other creatures you control get +1/+0.

Whenever you attack with two or more creatures, draw a card.

When Esika's Chariot enters, create two 2/2 green Cat creature tokens.

Whenever Esika's Chariot attacks, create a token that's a copy of target token you control.

Crew 4

Flying

The first time you would create one or more tokens during each of your turns, you may instead choose a creature other than Esix, Fractal Bloom and create that many tokens that are copies of that creature.

, : Prevent the next 2 damage that would be dealt to you this turn.

, : Target creature gets -1/-1 until end of turn.

Flying

As long as you control another multicolored permanent, Esper Stormblade gets +1/+1 and has flying.

Counter target creature spell. Essence Backlash deals damage equal to that spell's power to its controller.

As long as you've lost life this turn, Essence Channeler has flying and vigilance.

Whenever you gain life, put a +1/+1 counter on Essence Channeler.

When Essence Channeler dies, put its counters on target creature you control.

Essence Extraction deals 3 damage to target creature and you gain 3 life.

Return two target creatures to their owners' hands.

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

Enchant permanent

As long as enchanted permanent is red or green, it has "At the beginning of your upkeep, sacrifice this permanent unless you pay its mana cost."

Disguise (You may cast this card face down for as a 2/2 creature with ward . Turn it face up any time for its disguise cost.)

When Essence of Antiquity is turned face up, creatures you control gain hexproof until end of turn. Untap them.

Counter target creature spell.

+2: Untap each enchanted permanent you control.

−1: Create a white Aura enchantment token named Mask attached to another target permanent. The token has enchant permanent and umbra armor.

−7: Mill seven cards. Return all non-Aura enchantment cards from your graveyard to the battlefield, then do the same for Aura cards.

Estrid, the Masked can be your commander.

Whenever Estwald Shieldbasher attacks, you may pay . If you do, it gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Trample, indestructible

Whenever Etali, Primal Sickness deals combat damage to a player, they get that many poison counters. (A player with ten or more poison counters loses the game.)

Enchant creature you control

When Etali's Favor enters, discover 3. (Exile cards from the top of your library until you exile a nonland card with mana value 3 or less. Cast it without paying its mana cost or put it into your hand. Put the rest on the bottom in a random order.)

Enchanted creature gets +1/+1 and has trample.

When Etched Familiar dies, each opponent loses 2 life and you gain 2 life.

Haste

If a creature dealt damage this turn by a source you controlled would die, exile it instead.

Search target opponent's library for an artifact, creature, enchantment, or land card. Put that card onto the battlefield under your control. Then that player shuffles.

Epic (For the rest of the game, you can't cast spells. At the beginning of each of your upkeeps, copy this spell except for its epic ability. You may choose a new target for the copy.)

Eternal Flame deals X damage to target opponent or planeswalker and half X damage, rounded up, to you, where X is the number of Mountains you control.

Afflict 2 (Whenever this creature becomes blocked, defending player loses 2 life.)

Whenever Eternal of Harsh Truths attacks and isn't blocked, draw a card.

When Eternal Skylord enters, amass Zombies 2. (Put two +1/+1 counters on an Army you control. It's also a Zombie. If you don't control an Army, create a 0/0 black Zombie Army creature token first.)

Zombie tokens you control have flying.