What is the best/most valuable card in Transformers
Use this rule: If your deck needs a thing to function, you need enough copies of that thing that you see it every game
(2018-10-05) If the target creature's power is no longer less than the attacking creature's power as the ability resolves, mentor doesn't add a +1/+1 counter
That said, Jazal Goldmane will also do well in any deck that wants to amass lots of efficient creatures, meaning this commander isnt really focused on tokens or token strategies, and is decidedly mediocre if you havent put any token creatures into play yet or after a board wipe like Wrath of God destroys them all
Given how many broken strategies typically lean on artifacts, this is scary news indeed
Even in the unlikely event that the decks value drops over time, its still a great product