Forum:Damage Step Question

I have a question guys, there are some cards that state "during the Damage Step only". Cards such as Black Veloci, Crystal Beast Topaz Tiger and Rallis the Star Bird are the three examples that I wish to present here.

I don't quite understand how to properly utilize this ruling during my duels, and it's led to some very confusing and frustrating situations. Can someone help me clarify the rulings to these three above mentioned cards?

Luckily, Dark Veloci and Topaz Tiger share a similar ability. So it shouldn't be too much of a chore to summerize their effects. I appreciate the help and eagarly await your responses. Berserkfhurer 07:13, 29 July 2009 (UTC)