, Sacrifice this enchantment: Add .

Whenever you tap a nonland permanent for mana, add one mana of any type that permanent produced.
: Look at the top five cards of your library. You may put a non-Human creature card from among them onto the battlefield. Put the rest on the bottom of your library in a random order.

Hideaway 4 (When this creature enters, look at the top four cards of your library, exile one face down, then put the rest on the bottom in a random order.)
This creature enters tapped.
When this creature leaves the battlefield, put the exiled card into its owner's hand.

: You may put a land card from your hand onto the battlefield. If you control ten or more lands, flip this creature.

Target creature gets +3/+0 and gains first strike until end of turn. (It deals combat damage before creatures without first strike.)

: This creature gets +3/+3 until end of turn. Activate only once each turn.

When this enchantment enters, exile all graveyards.
If a card or token would be put into a graveyard from anywhere, exile it instead.

Target player sacrifices a creature of their choice and loses 1 life.

When Valki enters, each opponent reveals their hand. For each opponent, exile a creature card they revealed this way until Valki leaves the battlefield.
: Choose a creature card exiled with Valki with mana value X. Valki becomes a copy of that card.

Rolling Thunder deals X damage divided as you choose among any number of targets.

: Mill two cards. (Put the top two cards of your library into your graveyard.)
, Exile this artifact: Shuffle any number of target cards from your graveyard into your library.

Target creature gets +3/+1 and gains trample until end of turn. (It can deal excess combat damage to the player or planeswalker it's attacking.)

This creature gets +1/+1 as long as you control a Swamp.
: Regenerate this creature. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

When this enchantment enters, search your library for a basic land card, reveal it, put it into your hand, then shuffle.
, Sacrifice this enchantment: You gain 2 life and draw two cards. Target opponent loses 2 life. This enchantment deals 2 damage to up to one target creature. You create a 2/2 green Bear creature token.

: This creature gets +2/+2 until end of turn.

Target creature gets +2/+2 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.)

Soulbond (You may pair this creature with another unpaired creature when either enters. They remain paired for as long as you control both of them.)
As long as this creature is paired with another creature, both creatures have deathtouch.

If one or more -1/-1 counters would be put on a creature you control, that many -1/-1 counters minus one are put on it instead.

Hexproof (This creature can't be the target of spells or abilities your opponents control.)
This creature can't be blocked.

Counter target creature spell.

Equipped creature has nonbasic landwalk. (It can't be blocked as long as defending player controls a nonbasic land.)
Equip

Choose one —
• Destroy target creature with no counters on it.
• Remove up to three counters from target creature.

This creature can't block.
At the beginning of your upkeep, put a +1/+1 counter on this creature and you lose 1 life.

Battle cry (Whenever this creature attacks, each other attacking creature gets +1/+0 until end of turn.)

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

Add for each creature you control.

When this creature enters, each opponent may put any number of artifact, creature, enchantment, and/or land cards from their hand onto the battlefield.

Create two 1/1 red Goblin creature tokens.

Attacking creatures you control get +1/+0.

Flying
: This creature gains deathtouch until end of turn. (Any amount of damage it deals to a creature is enough to destroy it.)

Destroy target monocolored creature.

Draw X cards.

Target creature gets +1/+1 until end of turn. Another target creature gets -1/-1 until end of turn.

Creatures without flying can't block this turn.

Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.)

When this creature enters, choose one —
• Put a +1/+1 counter on target creature.
• Proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)