Every distinct wording since 2010, newest first.
January 24, 2020 · Theros Beyond Death
An ability that triggers at the beginning of a step or phase may trigger multiple times if it triggers at the beginning of “each player’s” or “each opponent’s” step or phase. These abilities trigger once for each appropriate player if the ability’s trigger condition, effect, or intervening “if” clause refers to “that player,” “that opponent,” or similar.