What is the reasoning for Regigigas’ ability?

Question

Is it possible that the reason why regigigas has this ability is because it's has been sleeping for so long? Sorta like the "I hate getting up in the morning" kind of thing?

Comments

Regigigas is always sleepy, also I thought the same thing, Pangaea would have been a way better ability name and I hope it would have a better effect.

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Well that's True.

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Its Pokedex entries don't mention anything about being lazy or sleepy, although the fact that it was based on the Golem suggests this might be true. By the way, the Golem was supposedly sealed in an attic, while Regigigas was sealed in a basement.

Answer 1

Slow Start is given to Regigigas for the same reason Slaking has Truant and Shedinja has 1HP. It is there to intentionally, although temporarily, cripple a Pokémon that would otherwise be extremely dangerous. You'll see this guy in doubles a lot, paired with someone who can change its ability. The game makes it hard for Regigigas to stall its opening turns - it's one of very few Pokémon that can't learn Rest for this reason.

Comments

Great green hams, you provided a good answer, and that is true for regigigas can't learn rest, because I'm guessing it already had it's rest.

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You can make an answer Best Answer if you click on the check top-right of the answer.

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Consider the fact that Regirock, Regice, and Registeel also lay dormant for a great many years in circumstances very similar to RG. And they got Clear Body.

Answer 2

Morimoto talks about Regigigas's ability like this:

Slow Start forces the player to wait 5 turns.
Once the Slow Start ends after 5 turns, though, Regigigas is actually much faster than it appears!

The developers basically wanted you to play Regigigas tactically: defensively for 5 turns, then offensively for the rest of the battle. In competitive, however, this makes Regigigas absolute trash. Imo, if they had a better Pokemon for it that could play offense-defense, it would be a really cool Ability to use; but, for now, all we have is Regigigas that sucks with Slow Start. :P

Upon further search, I found no reason that Regigigas should be hindered by slow start unless you count being massive (but there are bigger Pokemon that are faster than Regigigas). The dev's may have given the ability to hinder it because "it is so powerful," but it really wouldn't be outside of ubers/incredibly OP without Slow Start.

TL;DR: Regigigas was either given the ability to force a player to be tactical, to prevent it from being "OP", or because the developers give terrible abilities sometimes.

Source, Bulbapedia

Hope I Helped!