Note the mana value of each card as it's put into exile.

Bell Borca, Spectral Sergeant's power is equal to the greatest number noted for it this turn.

At the beginning of your upkeep, exile the top card of your library. You may play that card this turn.

Distribute X +1/+1 counters among any number of creatures you control, where X is the amount of spent to cast this spell. Then draw a card for each creature you control with power 4 or greater.

Backup 1 (When this creature enters the battlefield, put a +1/+1 counter on target creature. If that's another creature, it gains the following ability until end of turn.)

Whenever this creature attacks, double the number of +1/+1 counters on target creature. That creature can't be blocked by creatures with power 2 or less this turn.

Other Citizens you control get +1/+0.

Whenever Darling of the Masses attacks, create a 1/1 green and white Citizen creature token.

When Demonic Lore enters the battlefield, draw three cards.

At the beginning of your end step, you lose 2 life for each card in your hand.

Whenever one or more artifacts enter the battlefield under your control, put two +1/+1 counters on Elvish Archivist. This ability triggers only once each turn.

Whenever one or more enchantments enter the battlefield under your control, draw a card. This ability triggers only once each turn.

Flying

Flying

: Another target creature gains flying until end of turn.

Channel — , Discard Ghost-Lit Drifter: X target creatures gain flying until end of turn.

: Draw a card. You may put a land card from your hand onto the battlefield.

Each player may discard their hand and draw cards equal to the greatest mana value of a commander they own on the battlefield or in the command zone.

Search your library for up to X basic land cards, where X is the number of creatures attacking you, put those cards onto the battlefield tapped, then shuffle.

Prevent all combat damage that would be dealt this turn.

Flying

Whenever a player casts their second spell each turn, Ledger Shredder connives. (Draw a card, then discard a card. If you discarded a nonland card, put a +1/+1 counter on this creature.)

Exploit (When this creature enters the battlefield, you may sacrifice a creature.)

Menace

When Loathsome Curator exploits a creature, destroy target creature you don't control with mana value 3 or less.

Choose a card name other than a basic land card name. Search target opponent's graveyard, hand, and library for any number of cards with that name and exile them. That player shuffles, then creates a 2/2 black Zombie creature token for each card exiled from their hand this way.

Enchant creature

Enchanted creature gets +2/+2 and is goaded. (It attacks each combat if able and attacks a player other than you if able.)

Whenever enchanted creature attacks, its controller loses 2 life and you gain 2 life.

Whenever Radha, Heir to Keld attacks, you may add .

: Add .

Trample

Other creatures you control get +1/+0.

Nightbound (If a player casts at least two spells during their own turn, it becomes day next turn.)

Cascade (When you cast this spell, exile cards from the top of your library until you exile a nonland card that costs less. You may cast it without paying its mana cost. Put the exiled cards on the bottom in a random order.)

Flash

Hexproof

When Slippery Bogbonder enters the battlefield, put a hexproof counter on target creature. Then move any number of counters from among creatures you control onto that creature.

As Stenn, Paranoid Partisan enters the battlefield, choose a card type other than creature or land.

Spells you cast of the chosen type cost less to cast.

: Exile Stenn. Return it to the battlefield under its owner's control at the beginning of the next end step.

Syr Elenora, the Discerning's power is equal to the number of cards in your hand.

When Syr Elenora enters the battlefield, draw a card.

Spells your opponents cast that target Syr Elenora cost more to cast.

Tome of Legends enters the battlefield with a page counter on it.

Whenever your commander enters the battlefield or attacks, put a page counter on Tome of Legends.

, , Remove a page counter from Tome of Legends: Draw a card.

Morbid — When Wakedancer enters the battlefield, if a creature died this turn, create a 2/2 black Zombie creature token.

Flying, haste

Whenever Xira, the Golden Sting attacks, put an egg counter on another target creature without an egg counter on it. When that creature dies, if it has an egg counter on it, draw a card and create a 1/1 black Insect creature token with flying.