Right, assuming players have access to the oracle text (the canonical post errata text for the card), and a copy of the comprehensive magic rules, it should be

Right, assuming players have access to the oracle text (the canonical post errata text for the card), and a copy of the comprehensive magic rules, it should be possible to deterministically determine the result of any interaction (modulo any specified randomness or opportunities for human choice). The comprehensive rules are intended to be fully comprehensive, with only simply logic needed to connect the parts. If this has failed anywhere leaving something without a clear resolution this would be considered a defect in the comprehensive rules or the card's canonical text. Such defects are not especially common, as they tend to get noticed before new cards or mechanics are released. This is especially true since WOTC ends up programming these mechanics into software not once but at least twice. (First for MTGO, and then again for MTG Arena's backend, and sometimes needing to program it again for the Arena's front end code.) The need to program it into the software gives makes it much more likely than any remaining ambiguity in the Card's Oracle text or the comprehensive rules gets noticed and addressed.