Madara's past powers, what could it be?

[Mohammed 95]

the only uchiha power we saw from him was Susanoo and Fire style:

and on this page Hashirama said that Madara retrieved his past power.

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any ideas what it is and could he be that he's hiding his true uchiha full powers?

 

[-immortal-]

The Powers he had at VoTe

 

[Waindo]

He probably meant that he is morr dangerous/proficient alive then he was as an edo