When you unlock this door, this Room deals 2 damage to target creature.

As long as Chittering Illuminator is at the top of your library, you may look at it any time and you may cast it.
As long as the top card of your library is a creature card, you may look at it any time and you may cast it.

Enchantment spells you cast have convoke.
Eerie — Whenever an enchantment you control enters and whenever you fully unlock a Room, conjure a card named Mothlight Processionist into your hand. Discard that card at the beginning of the next end step.

Haste
Whenever one or more other creatures die, Soul Shredder perpetually gets +1/+1. This ability also triggers if Soul Shredder is in your graveyard.
Crew 1
, Sacrifice two creatures: Return Soul Shredder from your graveyard to the battlefield. Activate only as a sorcery.

Once during each of your turns, you may cast a noncreature, non-Aura permanent spell from your graveyard. If you do, it perpetually becomes a 2/1 Rat creature in addition to its other types.

Survival — At the beginning of your second main phase, if Glimmer Hoarder is tapped, you lose 1 life and draft a card from Glimmer Hoarder's spellbook. That card perpetually becomes an enchantment in addition to its other types.

Creatures you control get +1/+0.

Whenever Gilded Ambusher attacks, you may sacrifice another nonland permanent. When you do, each opponent exiles a nonland, nontoken permanent they control and a random nonland card from their library, then Gilded Ambusher deals damage to them equal to the total mana value of the cards exiled this way.

Ward—Pay 3 life.
Whenever this creature attacks, heist target opponent's library.

Enchantment creatures you control have menace.
Whenever one or more enchantment creatures you control deal combat damage to a player, exile a random creature card from that player's library. Create a token that's a copy of that card, except it's a 1/1 enchantment creature.

Haste
Whenever this creature enters or attacks, target creature you control perpetually gets +1/+0.
If a creature you control becoming the target of a spell or ability causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.

Double team
Whenever you cast an instant or sorcery spell, creatures you control that are Otters and/or enchantments get +1/+1 until end of turn.
When Enduring Friendship dies, if it was a creature, return it to the battlefield under its owner's control. It's an enchantment. (It's not a creature.)

When you cast this spell, target opponent drafts a card from Razor Demon's spellbook. They may cast that card without paying its mana cost.
Flying
Ward—Discard a card.

Enlist
Survival — At the beginning of your second main phase, if Effie is tapped, put a +1/+1 counter on each tapped creature you control. Then seek a Survivor card with mana value less than or equal to the number of tapped creatures you control.

If you weren't the starting player, this spell costs less to cast.
Manifest dread.
Rebound