Eternatus needs a second/hidden ability.

Since the return of Reg G it's been my most used restricted. I just really enjoy using it. If I'm serious about laddering however I'll obviously use one of the meta picks that are clearly superior.

The thing is Eternatus actually has really good typing, solid stats and a very good move pool. It's got really positive match ups against both Miraidon and Zamazenta who are the two most popular restricteds ATM. If you get speed control against Miraidon it kills it with DMAX cannon and if Miraidon teras to fairy it kills it with sludge bomb/wave. Similarly, Zamazenta takes huge damage from flamethrower and most Zama plays use tera dragon which DMAX cannon hits for super effective. It also resists body press and outspeeds Zama without need for speed control, so immediately pressures it.

Speaking of pressure...Eternatus basically has no ability as Pressure just never impacts your typical VGC match. IMO Eternatus should get levitate. It not only makes sense thematically given the pokemon does actually levitate but it would also remove it's ground weakness. It would make it stronger without making it broken. Though you could argue it should get something broken to keep up with the others.

What do you guys think? What ability would you give it?

EDIT: Some really cool suggestions. Another, I just thought of that would be good is Sheer Force.