, : Search your library for a Mercenary permanent card with mana value 1 or less, put it onto the battlefield, then shuffle.

Creatures you control get +1/+0.
+1: Add or . Creature spells you cast this turn can't be countered.
−2: Target creature you control fights target creature you don't control.

You may have this artifact enter as a copy of any artifact on the battlefield.

At the beginning of your upkeep, surveil 1. Then if there are three or more creature cards in your graveyard, this creature becomes prepared. (While it's prepared, you may cast a copy of its spell. Doing so unprepares it.)

Return target card from your graveyard to your hand.

You may play up to three additional lands this turn.

: Create a 1/1 green Insect creature token.

You may play a card you own from outside the game this turn.

Whenever Varchild deals combat damage to a player, that player creates that many 1/1 red Survivor creature tokens.
Survivors your opponents control can't block, and they can't attack you or planeswalkers you control.
When Varchild leaves the battlefield, gain control of all Survivors.

Flying (This creature can't be blocked except by creatures with flying or reach.)
Nightmare's power and toughness are each equal to the number of Swamps you control.

Lands you control enter untapped.
Whenever you attack a player, create a Lander token. (It's an artifact with ", , Sacrifice this token: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.")

Enchant creature
Whenever enchanted creature blocks or becomes blocked, you may put a +1/+1 counter on it.

Descend 8 — The Ancient One can't attack or block unless there are eight or more permanent cards in your graveyard.
: Draw a card, then discard a card. When you discard a card this way, target player mills cards equal to its mana value.

Partner with Lore Weaver (When this creature enters, target player may put Lore Weaver into their hand from their library, then shuffle.)
: Untap two target lands.

: Add or . You get a poison counter.

Whenever this creature attacks and isn't blocked, you may have defending player activate a mana ability of each land they control and lose all unspent mana. If you do, this creature assigns no combat damage this turn and at the beginning of your next main phase this turn, you add an amount of equal to the amount of mana that player lost this way.

: Add .
, , Sacrifice a Desert: Exile all graveyards.

This creature gets -X/-X, where X is your life total.

Return target instant or sorcery card from your graveyard to your hand.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Flying
Enchantment creatures you control have deathtouch, lifelink, and hexproof.
: Target non-Aura enchantment you control becomes a creature in addition to its other types and has base power and base toughness each equal to its mana value.