Infectious Thallid

(Transforms from Grave Fiend). When Infectious Thallid transforms, search your deck for up to two cards named "Thallid Parasite" and attach them to two target creatures. Rot, Infect
Delerum- Grave Fiend gets +2/+2 and Trample.
Threshold- Grave Fiend gets +1/+1 and First Strike.
Saprolings have +1/+4 and "{b/g}: this creature gets +1/+1 and target creature gets -1/-1 until end of turn.
You control players with 9 posion counters.
You control creatures with 6 or more
-1/-1 counter