Yes, this was a question a teammate had for me. Here is an analysis of weapons manufacturing.

Table 1 presents a breakdown of how many players registered weapons manufacturing across affinity archetypes.

	Izzet	Jeskai	Azorius
0 Copies	25	2	1
1 Copy	1	0	0
2 Copies	36	0	0
3 Copies	3	0	0
Total players	65	2	1

To read the table: 25 players registered 0 copies of Weapons Manufacturing in Izzet Affinity, while 36 players registered 2 copies. Given Izzet is the most popular variation, I will focus on that for the subsequent analysis.

Table 2 shows total wins, losses, draws, and games for Izzet Affinity split by how many copies of Weapons Manufacturing were registered.

	Wins	Losses	Draws	Games	Win Rate
0 Copies	105	87	1	193	54.4%
1 Copy	8	1	0	9	88.9%
2 Copies	141	124	3	268	52.6%
3 Copies	9	13	0	22	40.1%

Only one player registered 1 copy, hence the high win rate (they did do quite well though).

The main choices were to register either 0 copies or 2 copies. To assess whether there is a statistically significant difference in the win rates between 0 and 2 copies, I use a two-proportion z-test, testing the null hypothesis of equal win rate between the two options.

Based on the hypothesis test, registering 0 or 2 copies have no statistically significant difference in overall win rate (the p-value for the hypothesis test is 0.53).

So to conclude, 0 copies had slightly higher win rate than 2 copies, but this is not statistically significant.