Deep Sea Diva

Tried it, hate it.

Allow me to explain. The person whom I played against in Round 4 at the last tournament I went to had a nice idea. Use three Deep Sea Diva and two Spined Gillman. That makes it so that your Deep Sea Diva is almost never a dead card; you could use it for the normal shenanigans that it's famous for, or you could drop a Level 5 Synchro for free.

The concept behind it was amazing. It increased your chance of winning against Lightsworn (Catastor) as well as allowing you to draw the Diva more often.

As amazing as it seemed, I play tested the variant against some Lightsworn Junk and Debris deck I threw together because I was bored. The Diva Zombie deck lost. Three times. In a row.

It was terrible. If you draw a Spined Gillman, it's dead in your hand. That's tolerable, but the more annoying part was that Diva eats up your Normal Summon. You can't summon Goblin Zombie then Emergency Teleport for Krebons. You can't even just let Krebons sit on the field for a turn so that you can summon the Goblin Zombie later.

It may not be much of a problem in the mirror match, but with other match-ups, it's not worth it.