Whenever an opponent taps a Mountain for mana, you may gain 1 life.

Prevent all combat damage that would be dealt by target creature this turn.
Cycling (, Discard this card: Draw a card.)

At the beginning of your upkeep, you may put a fuse counter on this artifact.
, Sacrifice this artifact: Destroy each artifact and creature with mana value equal to the number of fuse counters on this artifact.

, : Choose a number greater than 0 and a color. Target opponent reveals their hand. If that opponent reveals exactly the chosen number of cards of the chosen color, you draw a card.

Reveal any number of blue cards in your hand. Counter target spell unless its controller pays for each card revealed this way.

This creature can't be blocked.

First strike (This creature deals combat damage before creatures without first strike.)
: This creature gets +1/+0 until end of turn.

Whenever a creature enters, you lose 1 life and add .

Defender (This creature can't attack.)
This creature can block any number of creatures.

Enchant creature
Enchanted creature gets +3/-1.

Target player skips their next draw step.

When this creature enters, target opponent discards a card.

Tap an untapped creature you control: Prevent the next 1 damage that would be dealt to target creature this turn.

Enchant creature
When enchanted creature dies, target player discards two cards.

Exile up to three target cards from a single graveyard.
Cycling (, Discard this card: Draw a card.)

Enchant creature
Enchanted creature has flying.
, Sacrifice this Aura: Draw a card.

: Add for each Forest you control.

As long as this artifact is untapped, each player chooses artifact, creature, or land during their untap step. That player can untap only permanents of the chosen type this step.

: This creature gets +0/+1 until end of turn.

, Discard a card: Draw a card.

Whenever a creature is dealt damage, this enchantment deals that much damage to that creature's controller.

Attacking creatures get +2/+0 until end of turn.

Enchant creature
At the beginning of your upkeep, you may put a growth counter on this Aura.
Enchanted creature gets +1/+1 for each growth counter on this Aura.

Whenever a creature attacks, this artifact deals 1 damage to it.

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When this creature enters or dies, put a +1/+1 counter on target creature.

, Sacrifice this creature: Draw a card.

When this creature dies, you may search your library for up to two basic land cards, reveal them, put them into your hand, then shuffle.
, Sacrifice this creature: Draw a card.

Trample
Whenever this creature is dealt damage, sacrifice that many permanents.

: Reveal any number of artifact cards in your hand. Add for each card revealed this way.

This creature can't be blocked as long as it's enchanted.

At the beginning of each player's end step, if that player didn't cast a spell this turn, this enchantment deals 2 damage to that player.

Flying
When this creature dies, return another target artifact card from your graveyard to your hand.

Echo (At the beginning of your upkeep, if this came under your control since the beginning of your last upkeep, sacrifice it unless you pay its echo cost.)
When this creature enters, destroy target artifact.

Target player gains control of target permanent you control.

When this creature enters, look at target opponent's hand.

As this artifact enters, choose a creature type.
Creature spells of the chosen type cost less to cast.