Id put it roughly on par with the Commander 2021 preconstructed decks
Abby, Merciless Soldier Partner is generally a good ability to have and the one I think Abby, Merciless Soldier works best with is Joel, Resolute Survivor which makes great use of the tokens you get from casting Abby

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Cards like Sword of Fire and Ice or Blackblade Reforged create situations where opponents face impossible choices between playing spells and feeding your hand with cards
With how much ramping the deck can do, you can get Hellkite Tyrant on the battlefield early
Final Fantasy Commander consists of four 3-color Commander precons