Choose one —
• Target opponent reveals their hand. You choose a card from it. That player discards that card.
• Target opponent sacrifices a creature or enchantment.

Nascent Lightvein enters the battlefield tapped.
As Nascent Lightvein enters the battlefield, choose a color. Then if you control three permanents that could each produce a different color of mana, untap it.
{T}: Add one mana of the chosen color.

Frostfire Geysers enters the battlefield tapped unless you control a basic Island or a basic Mountain.

Revolt — At the beginning of your end step, if a permanent you controlled left the battlefield this turn, create a 1/1 white Spirit creature token with flying.

Deathtouch
Whenever another creature you control dies, you may have Underhanded Revolutionary dare 3.

Equipped creature gets +2/+0 and has reach.
Whenever a creature enters the battlefield under your control, if it wandered, you may attach Aspirant's Hookrope to it.
Equip {2}

Whenever Reborn Apostle attacks, each player loses 1 life.

Flying
Ward {X}, where X is the number of enchantments you control.
Whenever Stormscraper of Ketaphos deals combat damage to a player or planeswalker, create a token that's a copy of another target enchantment you control.

Multitude {4}{W}{W}
When Drift Off enters the battlefield, exile target nonland permanent you don't control until Drift Off leaves the battlefield.

If this spell is the first spell you've cast this game, it costs {W} less to cast.
Whenever you cast a spell, you gain 1 life. If that spell is named Leystone of Being, create an X/X white Avatar creature token with lifelink, where X is the difference between your life total and your starting life total.

Flying
When Alrantan Skywatch enters the battlefield, create a 1/1 white Human creature token and draw a card.

As an additional cost to cast this spell, you may put a card from your hand on the bottom of your library. If you do, it costs {5} less to cast.
Searing Truthflame deals 5 damage to target creature or planeswalker.

Indestructible
As long as your devotion to green and blue is less than seven, Kruphix isn't a creature.
Whenever you tap a permanent for mana, add one mana of any type that permanent produced.

Enchant creature
Enchanted creature gets +3/+3 and has reach.

{3}{W}: Meowsician dares 4.
Whenever a creature you control becomes a Rebel, create a 1/1 white Warrior creature token.

Flying
When Anvilwrought Crane dies, create a Weapon token.

{1}{VP}{R}, Discard a card: Draw a card.

[+2]: Each player puts their hand on the bottom of their library in a random order. You draw five cards, then each opponent draws two cards.
[+1]: Untap each land you control.
[–3]: Return up to three target nonland permanents to their owner's hands.
[–9]: You get an emblem with “Whenever an opponent casts their first spell each turn, gain control of it. You may choose new targets for that spell.”

Flying
Springsoarer enters the battlefield with a +1/+1 counter on it if a creature you controlled dealt combat damage to a player this turn.
Wander {2}{U}

When Soul-Guide Lantern enters the battlefield, exile target card from a graveyard.
{T}, Sacrifice Soul-Guide Lantern: Exile each opponent's graveyard.
{1}, {T}: Sacrifice Soul-Guide Lantern: Draw a card.

Trample
Whenever you amp it up, double Xeon, BPM Savant's power until end of turn.

Enchant land you control
Enchanted land is a 2/2 Elemental creature with vigilance, haste, ward {1}, and “{T}: Add two mana of different colors.” It's still a land.
If enchanted land would be leave the battlefield, instead sacrifice Manifest the Lightveins and that land gains indestructible until end of turn.

Enchant creature
Enchanted creature gets -4/-0 and loses flying.

Reach
{1}, Sacrifice a land: Put a +1/+1 counter on Runerock Automaton.

When Hans Nehmann enters the battlefield, you may search your library for a card named Marie Laurent or Diago Maldovo and reveal that card. If you do, shuffle, then put the card on top of it.
Legendary Allies you control have lifelink.