summoning of hamon

ok i wanted to make sure i am doing this right,when i have 3 crystals in my spell zones can i send them to grave to summon hamon, lord of stricking thunder.
also i was unable to use the http://www.netrep.net , if someone can help me with that.

Yes you may. Hamon is a card that can do some damage in a Crystal Beast deck

thanks and i needed a test if u could along with a little briefing on how t http://www.netrep.net to check ruling.

Actualy it's recomended to use hamon on cristal beasts decks, I'd adivese you to check yu-gi-oh wikia if you don't find what you look for in netrep, it gives you a lot of info:

Yu-gi-oh Wikia wrote:

Use the "Crystal Beasts" as Tributes for "Hamon, Lord of Striking Thunder", since they can become Continuous Spell Cards when destroyed. This is also a great backup or substitute for Rainbow Dragon, as it only requires any three Crystal Beasts in the Continuous Spell zone (as opposed to Rainbow Dragon's requirement of 7 different crystal beasts). The downside, of course, is that the beasts are destroyed in the process of summoning Hamon.

I will lock this topic since your question has been answered.