Hmm... this looks good but when i try to use big wave small wave, it always tells me that i missed the timing for it. I'm summoning face up the frog, then BWSW and then special summon a monster. Never get prompted for the draw a card.
I mean it would be much better with Frog support. At least this works with the OCG rulings, meaning that you can set it and if it gets flipped face up by an attack and destroyed you will get the draw, but all in all, without the additional frog support this is just a worse Dekoichi/Skelengel.