If you can find a way to untap it for less than 3 mana, you can make infinite colorless mana
How many cards are in a Crown Zenith master set
To hop on that question you asked @Quuador , at least I found that out through Bulbapedia
Unfortunately, seven mana cards just arent really playable in current Standard, and this feels too low-impact for Commander
With a lower price comes cheaper chase cards, but if you want to collect shiny Pokemon on a budget, then Shining Fates packs should be a solid option when you can find them, as they rarely appear in most retail locations
I have fewer explosive starts, because I'm more likely to draw a 4-mana version of a spell with an Activated Ability I can use later than the 2-mana version which would leap me ahead if I got lucky