Shinkai Kanata, Ocean Envoy

When Shinkai Kanata, Ocean Envoy enters the battlefield, you gain {x} life, where {x} is your devotion to blue. (Each {u} in the mana costs of permanents you control counts towards your devotion to blue.)

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

"Puka, puka~~"