Standard Yellow Reaper, with a touch of Hybrid
Tactical Retreat is standard practice for Bubble rush and Gate lock.
Palates Head to take out floodgates.
18 Searcher is the limit to ensure draw power. May reduce Jeri and Pendulum (or both Palates, if confident on floodgates absence) to round out 20 Searcher.
Horn Striker and Zephyrmon as wincon shortcuts: each reduce the number of Searcher needed for Reaper to close the game by 2, to a minimum of 6 (plus X-Antibody to pop Mother), at which point Horn Striker comes down for free and Zephyr for 2 on a memory setter.
4th Tamer can either be Zoe or 2c T.K.: Zoe acts as insurance in case Zephyrmon is stuck in security, T.K. is the cheapest Zephyrmon enabler.