Rule 813.4.a
Those conditions might only be fulfilled while the card or ability is on the chain. In such a case, it can still be played or activated at the appropriate timing as long as doing so could fulfill the conditions.
Loading Arbiter…
Those conditions might only be fulfilled while the card or ability is on the chain. In such a case, it can still be played or activated at the appropriate timing as long as doing so could fulfill the conditions.