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Coastal Breach
{6}{U}
Sorcery
Undaunted (~this~ costs {1} less to cast for each opponent.)
Return all nonland permanents to their owners' hands.

Crush of Tentacles
{4}{U}{U}
Sorcery
Surge {3}{U}{U} (You may cast ~this~ for its surge cost if you or a teammate has cast another spell this turn.)
Return all nonland permanents to their owners' hands. If ~this~'s surge cost was paid, create an 8/8 blue Octopus creature token.

Devastation Tide
{3}{U}{U}
Sorcery
Return all nonland permanents to their owners' hands.
Miracle {1}{U} (You may cast ~this~ for its miracle cost when you draw it if it's the first card you drew this turn.)

Flood of Tears
{4}{U}{U}
Sorcery
Return all nonland permanents to their owners' hands. If you return four or more nontoken permanents you control this way, you may put a permanent card from your hand onto the battlefield.