Bonders' Enclave

• WWizards of the Coast2020-04-17
  Official Ruling
  Once you've activated the last ability of Bonders' Enclave, it doesn't check again at any point whether you control a creature with power 4 or greater.
• WWizards of the Coast2020-04-17
  Official Ruling
  Once you announce that you're activating the last ability of Bonders' Enclave, no player may take actions until you've finished activating it. Notably, opponents can't try to change whether you control a creature with power 4 or greater.

Rulings via Scryfall