Theres a lot of great SNC synergies with counters, but lopsided wrath effects are the most fun by far
Some sets have focused on golems as a minor part of the worldbuilding, while other sets use them as one-off artifact creatures to pad out Limited formats
Add on the fact that a simple piece of well-timed removal breaks up the entire combo, and this Carnage, Crimson Chaos combo will likely be relegated to Commander and Brawl
There isn't really much more to add here, the numbers of this card in my lists will probably wax and wane with the percentage of high-velocity Aggro decks in the meta
As far as their rarely used ultimates, I think both are going to help you win the game here if you get to them
This flying and lifelink creature brings back a permanent when it enters that has a mana value 4 for or less, which isnt too bad considering the large swathe of cards available, including our lands