Weird, the Deja Vu's that are copied on my games haven't been getting antimatter. Well, I'll check again when I find paradox.
As for Burrow and Antimatter, I know it can go either way, but the description of Burrow made me wonder if it was intended.
"Can not be targeted, but its damage is halved"
So, if it's not damaging, is it supposed to be halved?