Without a Shadow of a Doubt Trivia Quiz

Answer: Misdreavus

Misdreavus is available at basically the start of the game, as the player can acquire it as soon as they reach Pyrite Town.

Notably, enemy AI has seemed to have a difficult time remembering what Misdreavus' immunities are; for no apparent reason, and at no traceable interval, enemies will just use Normal, Fighting or Ground moves against Misdreavus despite it very much being immune to those moves. Perhaps this is because Genius Sonority, only giving the player one Ghost type, did not do their due diligence preparing AI opponents to deal with it.

Answer: Entei

Entei, the legendary Fire type, can really lay down the hurt if the player sets up the sun, then starts having Entei blast the foe with sun boosted Fire Blasts or Flamethrowers. Sadly, as a Fire type, Entei is weak to Miror B's rain-focused team. So the player can't just aimlessly switch it in to replace the rain he sets- they'll need to be more tactical on how they use Entei to oppose Rain Dance.

Answer: Delcatty

Lovrina, the boss of the Shadow Pokémon Lab, is the one who owns this Shadow Delcatty. Sadly, with Delcatty's pathetic Attack, Shadow Rush is not too strong despite being at a comparatively high base power relative to the rest of the game. Still, it's strong enough to at least leave a mark and offer a preview of what's to come from the rest of the game.

Answer: Hypno

Found during a boss fight with Gorigan at the Cipher Key Lair, this attack can hurt quite a lot despite being a spread move. As such, if attempting to catch Hypno, it would be ideal to pack at least one Shadow who can withstand several Shadow Storms and survive long enough to give the player a handful of attempts at the capture.

Answer: 1/16th the user's max HP

Unfortunately, it is very possible for Shadows to KO themselves while the player is trying to catch them. This becomes a serious problem when trying to catch legendaries or Pokemon with low catch rates, such as Gonzap's Skarmory, Nascour's Metagross or Evice's Tyranitar. Though risky, the player should put a Pokemon weak to their moves on the field if they're struggling with this problem; this will entice them to use moves other than Shadow Rush, giving the player more time to catch them.

Answer: One

Unfortunately, this game only has Shadow Rush for a Shadow move. All Shadows begin with only Shadow Rush before they can relearn any of their moves. When wielded by the enemy, the enemy can use Shadow Rush or any of their three relearned moves.

Answer: They are not learnset moves

In "Colosseum", Shadow Pokemon could only relearn moves that were either accessible via TM anyway or were part of that Pokemon's level up learnset. In "XD: Gale of Darkness" however, these moves frequently were composed of at least two, sometimes more, exclusive moves that could not be learned by that species in any other way.

For example, Poochyena and Mightyena re-learn Heal Bell upon purification. It is not possible to get Heal Bell on these two in any way other than acquiring them through this game.

Answer: Scents

Items such as the Joy Scent are designed to empty the heart gauge on Shadow Pokemon when used. They will also remove the Hyper or Reverse Mode affliction upon use, but can only be used outside of battle.

Answer: Weakness/Resistance to their own moves

In "Colosseum", Shadows are neutral to their own moves. In "XD: Gale of Darkness", Shadow Pokemon resist Shadow moves, but regular Pokemon are weak to Shadow moves.

Answer: Lunatone

Shadow Sky boosts the power of Shadow moves, in addition to damaging non-Shadows for 1/16th of their HP at the end of each turn. Lunatone's decent Special Attack and access to Shadow Wave and Shadow Sky let it make use of both traits.