A third Starfield Vocalist causes abilities to trigger four times, a fourth causes abilities to trigger five times, and so on
Shimatsu the Bloodcloaked A 0/0 for 4 mana that requires sacrificing permanents to enter the battlefield with that many +1/+1 counters reads awful
Then this 5/5 costs 7, and has a trilogy of key keywords that are awesome together - haste to get a faster Commander Damage kill, flying to swing over ground pounders, and then vigilance to swing and stay back for the blocking
If a cloaked creature would have disguise (or morph) if it were face up, you may also turn it face up by paying its disguise (or morph) cost
Sure, maybe he didn't take home $20,000 in his first Pro Tour, but over time, the profits are just as great
Hopefully, I inspired you to think about more interesting ways you can use your counters or more colors that you can make counters decks really work in