Registeel

Registeel is a very versatile Pokemon in Balanced Hackmons due to its strong defenses and mono-Steel typing. It can run many supportive and defensive sets effectively and is commonly used as a check to -ate users, as it resists Ice, Flying, and Steel. However, coverage moves, such as V-create, Close Combat, Thousand Arrows, and Magma Storm, can be a problem for Registeel, as it often cannot take super effective hits from the strongest Pokemon in the tier. It competes with Aegislash as a bulky Steel-type wall, but Registeel is bulkier. All in all, Registeel is one of the premier all-around defensive Pokemon of the tier, capable of walling many strong offensive threats as long as they don't have super effective moves.