Flash
When Eleanor, Royal Captain enters, target legendary creature gains indestructible until end of turn.
Cybersoul {5}{W/B}

When Electromagnetic Geode enters, draw a card.
{2}, {T}, Sacrifice Electromagnetic Geode: Add two mana of different colors.

Flash
Flying
When Electronegative Specialist enters, choose a number. You and creatures you control gain protection from mana values equal to the chosen number until end of turn.

As long as it's your turn, Elektes has first strike.
At the beginning of combat on your turn, target creature you control gets +X/+0 until end of turn, where X is your devotion to red and white.

Elephant of the Golden Palace enters with your choice of a lifelink counter or an indestructible counter on it if {W} was spent to cast it. The same is true for flying or ward {2} and {U}, deathtouch or menace and {B}, haste or double strike and {R}, and vigilance or trample and {G}.

Whenever you amp it up, target creature can't block this turn.

{1}, Exile a permanent card from your graveyard: Surveil 2.
{2}, Exile two permanent cards from your graveyard: Draw a card.
{5}, Exile five permanent cards from your graveyard: Exchange your hand and graveyard.

Whenever you amp it up, creatures you control get +1/+0 until end of turn.

Lifelink
Whenever Empowered Revisionary attacks, if its power is greater than its base power, create a number of 1/1 colorless Soldier creature tokens equal to the difference.

At the beginning of your end step, create a Food token.
Nonbasic permanents your opponents control enter tapped as long as you have more life than that player.

{1}{U}, {T}, Sacrifice Emulation Expert: Gain control of target creature you don't control with mana value 3 or less. Its owner creates a tapped token that's a copy of it. Activate only as a sorcery.

Vigilance
At the beginning of combat on your turn, if you've spent at least five mana to cast spells this turn, put a +1/+1 counter on Encampment Sentinel.

{2}{G}: Endangered Scinok gets +1/+1 until end of turn. This ability costs {1} less to activate until end of turn.

Vigilance, reach
When Enduring Jentil enters, create an artifact token named Menhir with “{2}, {T}, Exile a creature or land card from your graveyard: Draw a card. You gain 2 life.”
Whenever Enduring Jentil attacks, you may sacrifice an artifact. If you do, Enduring Jentil deals damage equal to its power to target creature.

When Energizing Static enters, target creature gets +3/+3 until end of turn. If that creature is an Elemental, it also gains trample until end of turn.

When Enforcer's Baton enters, create a 1/1 colorless Soldier creature token, then attach Enforcer's Baton to it.
Equipped creature gets +2/+1 and has vigilance.
Equip {4}

Indulgence
Whenever you indulge, surveil 2.

Whenever you cast an instant or sorcery spell with mana value 4 or greater, look at the top two cards of your library. Put one of them into your hand and the other into your graveyard.

Ward {1}
Whenever one or more counters are put on Enlightened Naturalist, draw a card for each kind of counter put on it on it that it didn't have already.

When Enlightenment enters, draw a card for each color of mana spent to cast it.
You have no maximum hand size.

Enchant creature
When Enrapturing Lights enters, untap enchanted creature. It gains haste until end of turn.
You control enchanted creature.

Enchant creature
When Enter the Moshpit enters, create a 2/1 red Zombie creature token with menace.
Enchanted creature gets +2/+1 and has menace.

Trample
Other creatures have base power and toughness 3/3.
At the beginning of your end step, sacrifice Eo unless you attacked this turn.

Flying, first strike, vigilance

Aura spells you cast cost {1} less to cast.
When Ephara's Oracle enters, look at the top five cards of your library. You may reveal an enchantment card from among them and put it on the top of your library. Put the rest on the bottom of your library in a random order.