Card Codex

Caetus, Sea Tyrant of Segovia

Scryfall

· Legendary Creature — Serpent

Noncreature spells you cast have convoke. (Your creatures can help cast those spells. Each creature you tap while casting a noncreature spell pays for {1} or one mana of that creature's color.) At the beginning of your end step, untap up to four target creatures. 3/3

Similar cards

Name	Mana	Type	Text
Amber Prison	4	Artifact	You may choose not to untap Amber Prison during your untap step. {4}, {T}: Tap target artifact, creature, or land. That permanent doesn't untap during its controller's untap step for as long as Amber Prison remains tapped.
Smoke	RR	Enchantment	Players can't untap more than one creature during their untap steps.
Surprise Deployment	3W	Instant	Cast this spell only during combat. You may put a nonwhite creature card from your hand onto the battlefield. At the beginning of the next end step, return that creature to your hand. (Return it only if it's on the battlefield.)
Victory Chimes	3	Artifact	Untap Victory Chimes during each other player's untap step. {T}: A player of your choice adds {C}.
Griffin Aerie	1W	Enchantment	At the beginning of your end step, if you gained 3 or more life this turn, create a 2/2 white Griffin creature token with flying.
Decision Paralysis	3U	Instant	Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.
Frost Breath	2U	Instant	Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.
Done	3U	Instant	Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.
Call for Unity	3WW	Enchantment	Revolt — At the beginning of your end step, if a permanent you controlled left the battlefield this turn, put a unity counter on Call for Unity. Creatures you control get +1/+1 for each unity counter on Call for Unity.
Will of the Naga	4UU	Instant	Delve (Each card you exile from your graveyard while casting this spell pays for {1}.) Tap up to two target creatures. Those creatures don't untap during their controller's next untap step.