I know you were, there's no way I'd be able to pull it off. Nor does Butterfly have a reason to.
Well......if Stinging Butterfly somehow pulled the ring off, he could teleport and backstab Argent Maiden, rebuking her infiltration of the Blue City in one foul swoop while leaving Princess in such a state she's liable to abandon her post and leave the flank exposed to try and save her sister.
Ra's Disciple is a LIGHT fairy with 1100ATK and 600DEF. The very last line of it's effect states "You cannot Special Summon monsters, except by the effect of 'Ra's Disciple'.". A quick trip to the wiki confirms that this is a continuous effect, and so is active all the time that Ra's Disciple is. He has three of them out on the field when he Synchs for Royal Guard.
Cause otherwise you'd see that card everywhere in R4nk or Frog Driver Decks, given that drawing into one means having the three of them out immediately.
