FWIW this spring Seattle lefthander James Paxton has an ERA of 1.08 with 17 strikeouts in 8.1 innings (with an Opponents Quality of 8.2):
James Paxton Stats, Age, Position, Height, Weight, Fantasy & News | Boston Red Sox
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James Paxton Stats, Age, Position, Height, Weight, Fantasy & News
https://www.baseball-reference.com/players/p/paxtoja01.shtml
Paxton was not among the Mariners who filled 16 of the 32 roster slots on my dynasty fantasy team at Saturday's auction. A title defense is unlikely.