What will happen when I use this card on an antimattered creature?
target creature would probably end up with 0 attack and same thing occurs depending on the difference of attack there was.
So it is probably better to write:
Target creature's attack is reduced to 0. For every two points difference, trigger one death effect.
It would be better to write that if thats how I planned for it to work. Currently the idea stands at changing the attack (not reducing, as it says) to 0. However, I'd keep the "for every two points
reduced", meaning that it would change that -6 to 0,
but no death effects would be triggered. I consider this fair as you're likely changing one of your creatures thats really helping your opponent and neutralizing that advantage, and also adding the death effects is OP.
How about "Decay" or "Degenerate" for the name? "Curse" would also work, but it's overused. "Malediction" means the same, and is a nice word. Only problem I see is with explaining why it would trigger death effects. That could suggest it's turned into a powerless undead, perhaps. For that purpose, something like "Displace Soul" could work. I dunno.
I originally chose Decimate to reflect on the reducing attack; old Roman units would be decimated and lose a tenth of their strength. I also had it reduce attacks to 1, though thats a heck of a lot more than 10%. I suppose a Curse | Malediction would be in better order? Either way, thanks for the suggestions.
Updating OP.