Icy Manipulator

• WWizards of the Coast2022-12-08
  Official Ruling
  Once a player announces that they're casting a spell or activating an ability, no player may take other actions until the spell or ability has been paid for. Notably, other players can't try to tap that player's permanents to stop them from paying or to stop them from producing enough mana.

Rulings via Scryfall

• WO
  Wizards of the Coast2013-08-05

  Icy Manipulator was restricted in vintage on August 5, 2013. The four-of card limits and the increase in deck size helped, but it didn't stop the degeneracy, so the next step was to further limit how many of a card players could play with. Restriction meant that only one copy of the card could be included in the deck. Source: https://magic.wizards.com/en/news/making-magic/twenty-things-were-going-kill-magic-2013-08-01