Restricting primary synergy triggers exclusively to Slash-type characters noticeably narrows the player's options during deck-building, preventing them from splashing generic green utility cards seamlessly
With artifacts being the most popular tag on EDHREC, there are literally hundreds of artifact commanders to choose from, and it's extremely possible you'll end up with a much more powerful, if less thematic deck as a result of going this route
Why would they put the effort in when they know that fans are going to buy the product regardless of quality
1 Gengar EX Best Card Against Supporters Stage: 2 HP: 170 Evolves from: Haunter On its own, Gengar EX is a very strong card, capable of dealing 100 points of damage with the Spooky Shot attack
Submissions shifted toward Beckett and SGC with reports of 15% increases in alternative grader volume
So, with that number being 190 in the case of Shiny Treasure ex, any card with a number that goes above 190 is a rarer, alternate art variant of a previous card