{T}: Add one mana of any color in your commander's color identity. Sacrifice Commander's Sphere: Draw a card.

Blue creature spells you cast cost {1} less to cast. Whenever you cast a creature spell, target creature an opponent controls doesn't untap during its controller's next untap step.

{T}: Add {C}. {1}, {T}, Sacrifice Mind Stone: Draw a card.

Blue spells you cast cost {1} less to cast.

{T}: Add {C}{C}.

Flying As an additional cost to cast blue permanent spells, you may pay 2 life. Those spells cost {U} less to cast if you paid life this way. This effect reduces only the amount of blue mana you pay. Whenever you cast a blue permanent spell, draw a card.

Whenever Fleet Swallower attacks, target player mills half their library, rounded up.

Landfall — Whenever a land enters the battlefield under your control, target player mills three cards.

Vigilance When Mirelurk Queen enters the battlefield, target player gets two rad counters. Whenever one or more nonland cards are milled, draw a card, then put a +1/+1 counter on Mirelurk Queen. This ability triggers only once each turn.

{1}, {T}: Target player mills a card. (They put the top card of their library into their graveyard.) Tap four untapped Advisors you control: Target player mills twelve cards. A deck can have any number of cards named Persistent Petitioners.

Landfall — Whenever a land enters the battlefield under your control, each opponent mills three cards. (To mill a card, a player puts the top card of their library into their graveyard.)

You may have Spark Double enter the battlefield as a copy of a creature or planeswalker you control, except it enters with an additional +1/+1 counter on it if it's a creature, it enters with an additional loyalty counter on it if it's a planeswalker, and it isn't legendary.

Whenever Terisian Mindbreaker attacks, defending player mills half their library, rounded up. Unearth {1}{U}{U}{U} ({1}{U}{U}{U}: Return this card from your graveyard to the battlefield. It gains haste. Exile it at the beginning of the next end step or if it would leave the battlefield. Unearth only as a sorcery.)

When Court of Cunning enters the battlefield, you become the monarch. At the beginning of your upkeep, any number of target players each mill two cards. If you're the monarch, each of those players mills ten cards instead. (To mill a card, a player puts the top card of their library into their graveyard.)

Whenever you cast a blue spell, target player mills two cards.

Enchant player At the beginning of each end step, enchanted player mills X cards, where X is the number of cards put into their graveyard from anywhere this turn.

Creatures don't untap during their controllers' untap steps. Whenever a creature enters the battlefield, untap all creatures.

Return all attacking creatures to their owner's hand.

Counter target spell. Its controller mills four cards.

Counter target spell. Its controller mills three cards.

Untap all nonland permanents you control.

Choose one. If you control a commander as you cast this spell, you may choose both. • Target player draws X cards. • Target player mills twice X cards.

Return all creatures to their owners' hands.

This spell costs {3} less to cast if an opponent has seven or more cards in their graveyard. Draw four cards.

Destroy target creature. It can't be regenerated. Its controller creates a 3/3 green Ape creature token.

Destroy target creature. It can't be regenerated. That creature's controller creates a 3/3 green Frog Lizard creature token.

Exile target nonland card in a graveyard that was put there from anywhere this turn. Copy it. You may cast the copy without paying its mana cost.

Counter target spell. Its controller mills three cards.

Target player mills two cards. Draw a card.

({T}: Add {U}.)

{T}: Add {C}. {2}, {T}: Each player draws a card.

{T}: Add {U}. Channel — {3}{U}, Discard Otawara, Soaring City: Return target artifact, creature, enchantment, or planeswalker to its owner's hand. This ability costs {1} less to activate for each legendary creature you control.

Casualty 2 (As you cast this spell, you may sacrifice a creature with power 2 or greater. When you do, copy this spell and you may choose a new target for the copy.) Target player mills half their library, rounded down.

Search your library for an artifact card, reveal it, put it into your hand, then shuffle.

Each opponent mills fourteen cards. Cycling {1}{U} ({1}{U}, Discard this card: Draw a card.) When you cycle Fractured Sanity, each opponent mills four cards.

Kicker {3}{U} Each opponent mills eight cards. If this spell was kicked, instead each opponent mills half their library, rounded up.

Choose target creature you control. Each other creature becomes a copy of that creature until end of turn, except it isn't legendary.

Target player mills half their library, rounded down.