Mystic Dystce Fish

{t} For {w/u} mana
{w/u}{t} Tap any creature in play
{w/u}{w/u}{c}{c}{t} Destroy target creature in play
{w/u}{w/u}{w/u}{c}{c}{t} Destroy a creature in opponents hand
[*] When Dystce comes into play, add {x} counters on it, where {x} is the number of creatures in play