All creatures get -X/-0, where X is the number of cards in your hand.
This spell costs {1} less to cast for each instant and sorcery card in your graveyard. You have no maximum hand size. At the beginning of your upkeep, put a knowledge counter on The Magic Mirror, then draw a card for each knowledge counter on The Magic Mirror.
Defender (This creature can’t attack.) When Grozoth enters, you may search your library for any number of cards that have mana value 9, reveal them, put them into your hand, then shuffle. {4}: Grozoth loses defender until end of turn. Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with the same mana value as this card, reveal it, put it into your hand, then shuffle. Transmute only as a sorcery.)
Return target creature with mana value X to its owner’s hand. You create X 1/1 blue Faerie creature tokens with flying.
Flying Haughty Djinn’s power is equal to the number of instant and sorcery cards in your graveyard. Instant and sorcery spells you cast cost {1}less to cast.
Suspend 3—{1}{U}{U} (Rather than cast this card from your hand, pay {1}{U}{U} and exile it with three time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost.) Search target opponent’s library for a creature card and put that card onto the battlefield under your control. Then that player shuffles.
You may cast Silver Scrutiny as though it had flash if X is 3 or less. Draw X cards.
At the beginning of each player’s upkeep, that player may put an artifact, creature, or land card from their hand onto the battlefield.
Whenever you cast an instant or sorcery spell, create a 2/2 blue Drake creature token with flying.
Deep-Sea Kraken can’t be blocked. Suspend 9—{2}{U} (Rather than cast this card from your hand, you may pay {2}{U} and exile it with nine time counters on it. At the beginning of your upkeep, remove a time counter. When the last is removed, you may cast it without paying its mana cost. It has haste.) Whenever an opponent casts a spell, if Deep-Sea Kraken is suspended, remove a time counter from it.
Whenever River Kelpie or another permanent enters from a graveyard, draw a card. Whenever a player casts a spell from a graveyard, draw a card. Persist (When this creature dies, if it had no -1/-1 counters on it, return it to the battlefield under its owner’s control with a -1/-1 counter on it.)
Whenever you cast a spell that targets only a single artifact or creature you control, create a token that’s a copy of that artifact or creature, except it’s not legendary.
Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) Flying When Thought Monitor enters, draw two cards.