While it is probably good enough in a deck that is built on the theme of +1/+1 counters, outside of this very specific archetype, adding a single +1/+1 counter to a creature just isn't enough value (even at instant speed) to make me add another tapped land to my deck, especially considering that green already has five MDFCs that I really want to be playing
Its never been reprinted (a travesty, if you ask me), so I cant show you the updated Oracle rules text on a card, but I can tell you what it would be if we ever saw Marble Priest again: All Walls able to block Marble Priest do so
Since it's free, it won't do anything else
The only reason it gets the nod is because merfolk is a creature type with way more support cards, so it has a wider selection of cards it can find
Aftermath Analyst allows you to Splendid Reclamation at instant speed, which feels like something I want to do, given how easy it is to recur creatures in the mill decks that want this
These decks are where you can find most cards from March of the Machine Commander as well as March of the Machine Planechase cards50 in total, with five oversized new-to -Magic cards and five oversized reprints unique to each deck