Help with my Gantz cards

[Ásgautr]

I need some help with my generating some Gantz cards, for those of you who know of Gantz anyway.

 

A few test cards thus far:

 

http://forum.yugiohcardmaker.net/thread-163994-post-3212283.html#pid3212283

 

Any suggestions or improvements are more than welcome.

 

My general idea is that we have the basic monsters (Four stars or below) then the improved versions, i.e. Kei Kurono and then 100 Pointer Kei Kurono.

 

As for the Gantz cards themselves, Gantz Ball I'd like to keep with some similar effects, and also I want to create another card that can only be played when "Gantz Ball" is on the field, but I'm not sure what effects to give it.