I dunno, that effect seems a bit OP. What it's saying is that if it battles, its attack can go up to at least 6000 ATK. That is incredibly difficult to beat, since it exceeds even the Five Headed Dragon's attack. Plus, it gets to do piercing battle damage. Hell, we don't even know its level, although I assume it's somewhere between level 8-10. It's basically way too powerful for it to be summoned without some sort of negative effect or specific summoning condition.

Also, you could have just used yugiohcardmaker.net to make that card.