Forum:Using Valhalla, Hall of the Fallen to summon Ritual Monster Ruin, Queen of Oblivion from hand

Hey, my brother and I can't come to an agreement here and we need an outside opinion. During our duel, he had no monsters on his side of the field during his turn, and so he told me that he could use Valhalla, Hall of the Fallen to special summon the Ritual monster Ruin, Queen of Oblivion to the field.

His argument is that Valhalla, Hall of the Fallen states that a fairy monster can be summoned from the hand, and since Ruin is a fairy type, Hall of the Fallen's effect summons Ruin superseding the fact that it is a ritual monster that would normally have to be summoned using a ritual card, because the rulebook states that card effects like Valhalla's would bypass basic game rules.

He cited examples that, according to him, support his theory, including;

Temple of the Kings (banned lolz) states that you can special summon a monster from hand, deck, or extra deck. This apparently includes fusion and synchro monsters, and therefore contradicts my argument.

Magical Scientist (he can't lay off the banned cards) special summons a fusion monster, which also contradicts my argument, though I believe it doesn't (as far as I can tell, it gets around the 'special summon only' ruling by specifically stating on the card that it's summoning a specific fusion monster).

Stardust Road special summons the synchro monster Stardust Dragon, who then can not be special summoned from the graveyard because it wasn't summoned properly. To him, the qualifier 'properly' means that certain monsters can be summoned 'improperly', simply with consequences (such as not being able to be special summoned from the graveyard, etc) while I believe that while it was summoned improperly the only reason it was allowed to be summoned was due to Stardust Road's effect in the first place, and can't be summoned by other cards that don't specifically designate him or synchro monsters in general. To him this would contradict the first two examples I posted above.

My argument against his summoning Ruin was that according to rulings on this site, ritual monsters count as 'special summon only' monsters, which simply cannot be special summoned using Valhalla, Hall of the Fallen, despite Ruin being a fairy-type monster.

Any idea who's in the right here?