Venerated Rotpriest does so much work to keep your Green creatures protected, Tyrranax Rex is just begging to be ramped into, Zopandrel, Hunger Dominus gives an aggressive green deck and serious boost (and can protect itself), and Bloated Contaminator gives us the proliferate we need to get our poison counters fully out of control
Likened to the long-ago-banned card Pot of Greed in Yu-Gi-Oh!, Tainted Indulgence is one of the best true draw spells printed in recent memory
Now, since there isn't much support for saprolings, Deathbloom Thallid will be mainly played in Rakdos Sacrifice shell because of its ability to produce a token after it dies
The drawback is that damage is calculated using those counters, so whatever damage it takes, it lose that many counters
Also, take a look at our list of the most valuable cards by Yuka Morii, one of the most popular Pokmon card artists ever!