Atlantean Heavy Infantry
[SeaSerpent/Effect]
During your Main Phase, you can Normal Summon 1 Level 4 or lower Sea Serpent monster in addition to your Normal Summon/Set. (You can only gain this effect once per turn.) If this card is sent to the GY to activate a WATER monster's effect: Target 1 face-up card your opponent controls; destroy that target.
ATK/0 DEF/1600