Whenever a Mountain an opponent controls becomes tapped, you gain 1 life.

Enchant creature
Enchanted creature has lifelink.

Chroma — Each creature you control gets +1/+1 for each white mana symbol in its mana cost.

Black creatures can't attack or block.

Enchant creature
Enchanted creature has "Whenever you gain life, put that many +1/+1 counters on this creature."

Prevent all damage that would be dealt to creatures you control by sources you control.

When this enchantment enters, it becomes an Aura with enchant creature. Manifest the top card of your library and attach this enchantment to it.
Enchanted creature has flying and lifelink.

Whenever one or more creatures attack, this enchantment deals damage to each of those creatures equal to the number of attacking creatures.

At the beginning of your end step, put a +1/+1 counter on each creature that attacked this turn.
Sacrifice this enchantment: Creatures you control gain hexproof and indestructible until end of turn.

Enchant creature or Vehicle
Start your engines!
Enchanted permanent gets +1/+1 and has vigilance.
Max speed — You may cast this card from your graveyard.

When this enchantment enters, exile up to one target nonland permanent an opponent controls until this enchantment leaves the battlefield. You gain 2 life.

When this enchantment enters, each player chooses five lands they control and sacrifices the rest.
Players can't play lands as long as ten or more lands are on the battlefield.

As Look at Me, I'm R&D enters, choose a number and a second number one higher or one lower than that number.
All instances of the first chosen number on permanents, spells, and cards in any zone are the second chosen number.

Read ahead (Choose a chapter and start with that many lore counters. Add one after your draw step. Skipped chapters don't trigger. Sacrifice after III.)
You and target opponent each draw two cards.
Create a 1/1 white Bird creature token with flying.
Put a +1/+1 counter on each of up to two target creatures.

At the beginning of each opponent's end step, if you didn't lose life this turn, you may put a quest counter on this enchantment. (Damage dealt by sources without infect causes loss of life.)
: Create a 4/4 white Angel creature token with flying. Activate only if this enchantment has four or more quest counters on it.

Enchant creature
Enchanted creature can't attack or block.

Enchant creature
Whenever enchanted creature attacks or blocks, you gain 4 life.

Creatures you control get +0/+1.
Morph

Enchant creature
Enchanted creature gets +2/+2 and has ", Sacrifice a permanent: This creature gains flying until end of turn."

Flash
Enchant creature
Enchanted creature gets +1/+2.

When this enchantment enters, exile target creature an opponent controls until this enchantment leaves the battlefield. You gain 2 life.

Enchant creature
Enchanted creature gets +3/+3 and has vigilance.
Umbra armor

Enchant creature
Enchanted creature can't attack.
: Enchanted creature gets -1/-1 until end of turn.
: Enchanted creature can't block this turn.

As this enchantment enters, choose black or red.
At the beginning of your upkeep, sacrifice this enchantment unless you pay .
Whenever a creature of the chosen color deals damage to you or a white creature you control, this enchantment deals that much damage to that creature.

Flash
Enchant creature
Whenever a creature enters, enchanted creature gets +2/+2 until end of turn.

Enchant creature you control
When this Aura enters, return any number of target Aura and/or Equipment cards from your graveyard to the battlefield attached to enchanted creature.
Enchanted creature gets +1/+1 for each Aura and Equipment attached to it.

Prevent all noncombat damage that would be dealt to creatures you control.

Enchant creature
Enchanted creature gets +2/+2 and has vigilance.

Multikicker
Creatures you control get +1/+1.
When this enchantment enters, return up to X target creature cards from your graveyard to the battlefield, where X is the number of times this enchantment was kicked.

Enchant creature
Enchanted creature gets +1/+1 and is goaded.
Whenever enchanted creature attacks, each other creature that's attacking one of your opponents gets +1/+1 until end of turn.