During your Main Phase, if the only monsters in your Graveyard, other than "Fishborg Launcher", are WATER monsters: You can Special Summon this card from your Graveyard. If this card is Special Summoned by this effect, banish it when it leaves the field. This card cannot be used as a Synchro Material Monster, except for the Synchro Summon of a WATER monster. You can only use the effect of "Fishborg Launcher" once per turn.