Draw cards equal to the highest mana value among permanents you control.

Return target sorcery card from your graveyard to your hand.

Creatures with power less than Shrill Howler's power can't block it.

: Transform Shrill Howler.

Menace

Each creature you control with menace can't be blocked except by three or more creatures.

Flying

When Spire Owl enters, look at the top four cards of your library, then put them back in any order.

Whenever you cast a spell with mana value 5 or greater, put two +1/+1 counters on Stormkeld Prowler.

Knightlifelink (Damage dealt by Knights you control also causes you to gain that much life.)

: Syr Cadian, Knight Owl gains vigilance until end of turn. Activate only from sunrise to sunset.

: Syr Cadian, Knight Owl gains flying until end of turn. Activate only from sunset to sunrise.

: Add .

: Add or . Thalakos Lowlands doesn't untap during your next untap step.

, : 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.

Copy target activated or triggered ability you control. You may choose new targets for the copy.

: Draw a card. Any player may activate this ability but only during their draw step.

Whenever this creature enters or transforms into Wildsong Howler, look at the top six cards of your library. You may reveal a creature card from among them and put it into your hand. Put the rest on the bottom of your library in a random order.

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