Tsunami, the Missing Princess

Flying, Islandwalk
Whenever Tsunami enters or attacks, creatures you control explores.
When Tsunami blocks another creature, that creature gets -X/-X until end of turn where X is Tsunami's power.
"Sunny, look — a student from the Jade Winglet is actually HERE! At SCHOOL, where they're SUPPOSED to be! What a glorious honor. Is it my hatching day? Or am
I hallucinating?"