{T}: Add {C}.

Basic landcycling {1} ({1}, Discard this card: Search your library for a basic land card, reveal it, put it into your hand, then shuffle.)

Creatures your opponents control enter the battlefield tapped.

Whenever a creature enters the battlefield under an opponent's control, you gain 1 life.

{T}: Add {W} or {U}.

{W}{U}, {T}, Sacrifice Azorius Cluestone: Draw a card.

Azorius Guildgate enters the battlefield tapped.

{T}: Add {W} or {U}.

{2}{W}: Tap target creature.

{2}{U}: Counter target activated ability. (Mana abilities can't be targeted.)

Azorius Herald can't be blocked.

When Azorius Herald enters the battlefield, you gain 4 life.

When Azorius Herald enters the battlefield, sacrifice it unless {U} was spent to cast it.

{T}: Add {W} or {U}.

{W}{U}: Azorius Keyrune becomes a 2/2 white and blue Bird artifact creature with flying until end of turn.

{T}: Add {W} or {U}.

{W/U}{W/U}{W/U}{W/U}, {T}, Sacrifice Azorius Locket: Draw two cards.

{1}, {T}: Add {W}{U}.

Enchant creature

When Bitter Chill enters the battlefield, tap enchanted creature.

Enchanted creature doesn't untap during its controller's untap step.

When Bitter Chill is put into a graveyard from the battlefield, you may pay {1}. If you do, scry 1, then draw a card.

Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)

Artifacts and creatures your opponents control enter the battlefield tapped.

Tap all creatures your opponents control. Creatures you control gain lifelink until end of turn.

Coastal Tower enters the battlefield tapped.

{T}: Add {W} or {U}.

{T}: Add one mana of any color in your commander's color identity.

Roll a d20.

1--9 | Tap all creatures your opponents control.

10--19 | Tap all creatures your opponents control. Those creatures don't untap during their controllers' next untap steps.

20 | Tap all creatures your opponents control. Those creatures don't untap during their controllers' next untap steps. Until your next turn, creatures your opponents control enter the battlefield tapped.

Choose two --

• Counter target spell.

• Return target permanent to its owner's hand.

• Tap all creatures your opponents control.

• Draw a card.

Tap target creature an opponent controls and put three stun counters on it. Scry 2. (If a permanent with a stun counter would become untapped, remove one from it instead.)

{2}{W}, {T}: Tap target creature.

Whenever you tap an untapped creature an opponent controls, you may pay {1}. When you do, choose one --

• Create a 4/4 white and blue Elemental creature token.

• Put a +1/+1 counter on each creature you control.

• Scry 2, then draw a card.

{1}, {T}: Tap target creature. This ability costs {1} less to activate during your turn.

{3}, Sacrifice Hylda's Crown of Winter: Draw a card for each tapped creature your opponents control.

You may choose not to untap Ice Floe during your untap step.

{T}: Tap target creature without flying that's attacking you. It doesn't untap during its controller's untap step for as long as Ice Floe remains tapped.

Flying

When Icefall Regent enters the battlefield, tap target creature an opponent controls. That creature doesn't untap during its controller's untap step for as long as you control Icefall Regent.

Spells your opponents cast that target Icefall Regent cost {2} more to cast.

Vigilance

Whenever Icewrought Sentry attacks, you may pay {1}{U}. When you do, tap target creature an opponent controls.

Whenever you tap an untapped creature an opponent controls, Icewrought Sentry gets +2/+1 until end of turn.

Creatures your opponents control enter the battlefield tapped.

Vigilance

When Intrusive Packbeast enters the battlefield, tap up to two target creatures your opponents control.

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

({T}: Add {U}.)

Flying

Creatures your opponents control enter the battlefield tapped.

Artifacts, creatures, and lands your opponents control enter the battlefield tapped.

When Monstrosity of the Lake enters the battlefield, you may pay {5}. If you do, tap all creatures your opponents control, then put a stun counter on each of those creatures. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Islandcycling {2} ({2}, Discard this card: Search your library for an Island card, reveal it, put it into your hand, then shuffle.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

({T}: Add {W}.)

Tap up to one target creature. Scry 1, then draw a card.

Whenever an opponent casts a spell, you may draw a card unless that player pays {1}.

Flash

Cone of Cold -- When Scion of Stygia enters the battlefield, choose target creature an opponent controls, then roll a d20.

1--9 | Tap that creature.

10--20 | Tap that creature. It doesn't untap during its controller's next untap step.

When Sharae of Numbing Depths enters the battlefield, tap target creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Whenever you tap one or more untapped creatures your opponents control, draw a card. This ability triggers only once each turn.

When Solitary Sanctuary enters the battlefield, tap target creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)

Whenever you tap an untapped creature an opponent controls, put a +1/+1 counter on target creature you control.

Flying

When Subjugator Angel enters the battlefield, tap all creatures your opponents control.

Tap one or two target creatures an opponent controls. Put a stun counter on each of them. (If a permanent with a stun counter would become untapped, remove one from it instead.)

First strike

Creatures and nonbasic lands your opponents control enter the battlefield tapped.

Tap all creatures your opponents control and untap all creatures you control.

{2}, {T}: Choose one that hasn't been chosen --

• Three Bowls of Porridge deals 2 damage to target creature.

• Tap target creature.

• Sacrifice Three Bowls of Porridge. You gain 3 life.

Choose one --

• Distract the Guard -- Tap target creature.

• Hide -- Target creature you control gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)