Leyline of the Meek

• WWizards of the Coast2006-02-01
  Official Ruling
  Leyline of the Meek gives a bonus to creatures only if they're tokens. Cards such as Clone that are copying tokens aren't tokens.
• WWizards of the Coast2021-03-19
  Official Ruling
  A player's "opening hand" is the hand of cards the player has after all players have taken mulligans. If players have any cards in hand that allow actions to be taken with them from a player's opening hand, the starting player takes all such actions first in any order, followed by each other player in turn order. Then the first turn begins.

Rulings via Scryfall