World Tree Mermaid (CST-036 SR) [Clash of the Star Trees]

This card gains [+200/+200] for each Seven Kings ruler you own revealed outside the game. Prevent all damage that would be dealt to this card by chants. Your opponent must target this card with spells or abilities, if able. [Enter] You may reveal a Seven Kings ruler you own from outside the game that does not share a name with other Seven Kings rulers you own revealed outside the game and keep it revealed until end of game.