This seems to be more of a grindy deck, accruing value of multiple turns
If I had to go back to the design table with the abilities locked in as they are, Id probably cost it at 2W or 1WW
In this format, threats come not only in the form of creatures, but also artifacts, enchantments, and even planeswalkers
The first wave of amass cards all created a Zombie Army, but with the addition of amass orcs in LTR, the original mechanic was changed to amass zombies. This allows different sets to represent armies that match the flavor of that set
It seems like theres a general push to make cheap version of every card someone might need as a game piece to stop entry into the game from becoming prohibitive and a realization that expensive cards can always be created through premium versions
That is part of the problem with Boros cards in general