You can read more about the set below and when you can snag them
You might not consider it ramp, sure, since it makes lands not grabs them from our library
Whether or not Venerated Rotpriest ends up a four-of in Infect reminds to be seen - usually Im the guy dying to Infect, rather than killing opponents with poison counters, so I'm not an Infect expert by any means, but at a minimum the new one-drop offers enough upside and unique lines that Infect players will try it, and I wouldnt be surprised to see some number of Venerated Rotpriests stick in the deck
I want to break down this question and figure out once and for all which is better for playing and what is better for your wallet
Every time it hits an opponent, you get a Treasure token and can cast the top card of their library that turn
If you've got your copies already then by all means you should include her