Tribute 1 Fish-Type monster to target 1 card on the field; destroy that target, and if you do, draw 1 card.
|Level-up reward||Mako Tsunami at Lv 40 [UR]|
Since Hammer Shark can special summon another monster, you can use the other monster to be tributed so it will not leave you defenseless, and will give you an extra draw as well.
Needle Sunfish's effect will activate when it gets sent to the graveyard, making it one of the better cards to use Fish Depth Charge with. It's better to not activate Fish Depth Charge to destroy your opponent's monster if they only have 1 monster on the field, because this will waste Needle Sunfish's effect.
|Actions||Tributes for cost / You draw cards|
|Monster/Spell/Trap categories||Destroys Spell Cards / Destroys Trap Cards / Destroys Monster Cards|