Note that this doesnt care about who controlled the creatures that died, so you can throw a bunch of tokens into your Viscera Seer to set up a huge swing of card advantage
If you count up all of the reprints valued at $3 or more, you'll see that Commander 2018 averages four a deck, while Commander 2017 had 6.4 and Commander 2016 had more than eight, which means the number of valuable reprints has been cut in half in two years (while MSRP increased from $35 to $40 at the same time)
Walking Ballista can remove a counter to damage itself, creating two new counters and then repeat
5 Cut: Furious Rise The Enchantment May Result In Card Loss To give space to any of the recommended upgrade cards for Limit Break, Id recommend cutting Furious Rise from the deck
If you are using things like the Eldrazi that don't stay in the yard then you need discard outlets that are cheap or free so that you can use it and the Shallow Grave or whatever at the same time
One or two mistakes could be a misprint, but several may indicate something suspicious