When Breaching Leviathan enters the battlefield, if you cast it from your hand, tap all nonblue creatures. Those creatures don't untap during their controllers' next untap steps.
These waters remain uncharted, but not for lack of trying.
NM-Mint - $6.50
Lightly Played - $5.90
Moderately Played - $5.20
Heavily Played - $4.60
Damaged - $3.30
NM-Mint Non English - $6.50
Lightly Played Non English - $5.90
Moderately Played Non English - $5.20
Heavily Played Non English - $4.60
Damaged Non English - $3.30