Create two tokens that are copies of target creature. Put a ward {2} counter on one of those tokens and a flying counter on the other.

When Eidolon of Empty Thoughts dies, create a Treasure token.
{6}: Create a 2/1 red Soldier creature token. Activate only as a sorcery and only if your devotion to red is three or more.

Favored
Whenever your Champion attacks, it can't be blocked this turn.

Scry 3, then draw three cards.
If this spell's flashback cost was paid, take an extra turn after this one.
Flashback {7}{U}{U}

When Elder Soulblade enters, search your library and/or graveyard for a creature card with mana value 2 or less. Put that card onto the battlefield, attach Elder Soulblade to it. If you searched you library this way, shuffle.
Equipped creature gets +3/+1 and has menace.
Equip {5}

When Elderflame Pilgrims enters, it deals 2 damage to target player or planeswalker.
Wander {5}{R}

First strike, lifelink
When this creature transforms into Eleanor, Kingslayer, exile up to one target creature. If that creature was legendary, put two +1/+1 counters on Eleanor.

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

Draw a card.
Make a pledge, then make a pledge again.

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.

Choose one —
• Elektes's Charge deals 2 damage to each creature that's not enchanted.
• Up to two target creatures you control each get +2/+0 and gain trample 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 hexproof and {U}, deathtouch or menace and {B}, haste or double strike and {R}, and vigilance or trample and {G}.

Exile target creature you control, then return that card to the battlefield under your control with an additional +1/+1 counter on it.

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.

Exile the top four cards of your library. You may play them until you play a card not exiled this way.

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.

Target creature gains protection from the color of your choice until end of turn. Scry 1.

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.