Finally, this product includes an instant and a sorcery in Duelist's Flame and Fated Clash
The mode to remove hexproof and indestructible is also really useful
Peter Parker's Camera Saffgor: Nothing was stopping them from simply calling this 'Reporter's Camera' or similar, but I digress
If you look at a typical Infect deck list all of its creatures are Phyrexians thanks to an errata a while ago, so The Seedcore works as a dual land (this is could also help open up the possibility of more three-color infect builds rather than the two-color builds which are most popular today), and almost all the most popular Infect creatures are 1/1s, which makes The Seedcores corrupted pump ability especially impactful
Of course, I can hear the thoughts of a few evil players out there that have already teed this up in tandem with land destruction like ArmageddonArmageddon
If the affected permanent gains an ability after Unable to Scream becomes attached to it, it will keep that ability