Its not that the deck is inherently flawed
If you havent yet, check out the whole seriesevery card is a winner
This historical guide covers STK-01 through STK-09, fixed starter-deck contents, regional differences, and the first four Korean booster releases
In other words, Achilles will come down for its reduced cost often, provide a decent threat, and buff your entire board as long as he remains on the battlefield
By the time you reach ascension a 2/2, doublestriking or otherwise, is going to be super low impact unless you also happen to have some equipment to put on it
When three cards were banned last Fall, Play Designs accompanying article said that while the banned cards were unintentionally much too strong, Throne of Eldraine was merely at the high end of intended power level