expression
A set phrase meaning 'as always' or 'as usual', often used to introduce a recurring situation or habitual action. Slightly formal or literary tone.
毎度のごとく、彼は遅刻してきた。
As always, he showed up late.
毎度のごとく、会議は長引いた。
As usual, the meeting ran long.
Combination of 毎度 (maido, 'every time') + の (no, possessive particle) + ごとく (gotoku, classical adverbial form of 如し, 'like, as'). The phrase follows a classical pattern meaning 'as is the case every time'.