Forum:The power of "Wave-Motion Cannon"?

I was wondering about the power of Wave-Motion Cannon as it states you 'can' remove this card during your Main Phase and it is continues are you allowed to keep this on the field as long as you want till you wish to remove it. i.e. leave it on the field say, three turns after activation (three stand by phases) remove it then inflict 3,000 damage. I ask this as I use it in my deck and when I duel people they always complain that it is too strong and I am wrong, I am not sure if I am wrong or not. thank you for reading

(87.102.87.42 19:22, 3 July 2008 (UTC))