Regigigas hitting a 'mummy'?

Question

Rigigigas has it's speed and attack halfed for the first 5 turns it's put on the field. If I hit Cofagrigus, will it's attack and speed set to full power straight after, or will it just stay weak (bulbapedia only mentions Skill Swap, Gastro Acid and Worry Seed)?

Answer 1

It will go to full power, as it no longer has Slow Start.

Source: Experience and bulbapedia saying "Multitype and Mummy itself are the only Abilities not affected by Mummy."

Answer 2

Yup,since the ability slow start is gone,it will get back to full power.

Source-personal experience.

Answer 3

Yes. It'll get its full power back. Short 'n' sweet. :P

Answer 4

Yep, it will work perfectly fine, however may a suggest a Pokemon with simple beam? It works the same just it's a move and will do good instead of doing nothing.