Cucumber Tommy, The Horrid

If Tommy wasn't cast through Ominous
Sight sacrifice it when it enters the battlefield
When Tommy enters the battlefield destroy
target [colored] permanent(s) an opponent
controls
Ominous Sight {x}{u}{b}{g}: X turns, when flipped
face up, Cleave and replace with X. Also
put X +1/+1 counters on Sea Horrors you
control.