The Royal Rook

Sorcery

Exile any number of target creatures. At the beginning of the next end step, return those cards to the battlefield tapped under their owners' control. Until your next turn, prevent all damage that would be dealt to you. Exile Morningtide's Light.

Legendary Creature — Shapeshifter

Changeling (This card is every creature type.) As Morophon enters, choose a creature type. Spells of the chosen type you cast cost {W}{U}{B}{R}{G} less to cast. This effect reduces only the amount of colored mana you pay. Other creatures you control of the chosen type get +1/+1.

Land

This land enters tapped unless you have two or more opponents. {T}: Add {U} or {B}.

Instant

This spell costs {2} less to cast if you gained life this turn. Destroy target nonland permanent.

Legendary Creature — Bird Skeleton Warlock

Flying When Moseo enters, create a 1/1 black and green Pest creature token with "Whenever this token attacks, you gain 1 life." Infusion — At the beginning of your end step, if you gained life this turn, return up to one target creature card with mana value X or less from your graveyard to the battlefield, where X is the amount of life you gained this turn.

Creature — Elemental Hydra

Trample (This creature can deal excess combat damage to the player or planeswalker it's attacking.) This creature enters with a +1/+1 counter on it. Landfall — Whenever a land you control enters, double the number of +1/+1 counters on this creature.

Artifact

This artifact enters tapped. {T}: Add {G}.

Creature — Snake

Deathtouch

Creature — Shapeshifter

Changeling (This card is every creature type.) Tap an untapped creature you control: This creature gains flying until end of turn.

Creature — Human Cleric

{T}: Target creature you control gains protection from the color of your choice until end of turn.

Basic Land — Mountain

({T}: Add {R}.)