Beanstalk Control is a mirror-ish matchup built on Tamiyo, Inquisitive Student, Quantum Riddler, and Murktide Regent backed by Force of Will and Force of Negation, so Containment Priest disrupts their Murktide Regent delve plan only marginally (Murktide is cast normally, so Priest doesn't stop it) but its real value is as a proactive 2/2 flash body that dodges sorcery-speed removal and trades well early. Consign to Memory can counter Quantum Riddler's warp cast if paid with colorless-adjacent mana or any relevant colorless spell, and more importantly counters triggered abilities like Tamiyo's investigate or Up the Beanstalk's draw trigger for cheap value denial. Stifle has limited high-value targets since their engine is mostly cantrip-based rather than ability-based, so it's trimmed. Keep your own Force of Will and Force of Negation at full count since this mirror is decided by who protects their threats and wins counter wars.