Even with the finality counter to keep things in check, there are still plenty of shenanigans you can pull off here
In general, comparing the methods, we can come to the following conclusions: Binders
Skip a Step, Phase, or Turn In this case, Skip [something] is the same as Instead of doing [something], do nothing. Necropotence and Necropotence replace your draw step with exactly nothing: You go directly from upkeep to the first main phase
(2025-09-19) You must follow all normal timing rules when casting a spell with mayhem
According to the rules of Magic , if a creature has both a 1/1 and a +1/+1 counter, they cancel each other out, so the end result of this loop will be that we have a normal Putrid Goblin, which we can sacrifice again to Altar of Dementia to mill two more cards and start the process over again