Dynamax Excadrill

When it comes to Max Raid performance, Excadrill is very much a VIP. Its capabilities as both a Steel and Ground attacker are impressive, further bolstered by having access to two 0.5 second Fast Attacks in Metal Claw and Mud Shot. It's typing is also very valuable defensively thanks to its massive list of resistances, easily making up for its relative frailty. Additionally, it possesses a surprisingly high HP stat, which makes it a good healer with Max Spirit. Honestly, this is an outstanding Pokemon that will make Max Battles substantially easier when it's needed.

In the future, several other Ground Types can outperform it offensively as a Ground attacker, while a number of big-name Steel Types already do the same from the Steel side. However, Excadrill's incredible Attack stat, role compression, and valuable defensive typing can keep it relevant for a long, long time.