Fury said:
In the anime
Diamond Dude activated the Spell Card. Aster had to pay the cost, e.g. double discard for
Magical Stone Excavation.
masterwoo0 that's not the point. I never said you dont have to chain it to the effect. To
what kind of effects you chain it to is what makes its text inaccurate. Read the #19 post on this page.
We already know that BBtD cannot chain to Continuous Effects, so most Effect Activations of a Spell or Trap Card are going to be from a Continuous Effect (if it remains on the field past resolution), which means that BBtD is useless against that. This is not in the Card Text either. But it is also a Basic Game Mechanic.
You listed Effect Activation of Spell and Trap's. Off-hand, I can't think of a Normal Spell or Trap that has a effect that you can "activate" after the card has resolved on the field, so you need to redefine your list in Post #19 in relation to Spell Speed 3 Counters.
Just to make something clear or "clearer"... Rulings are not provided to "teach" people how to play. They are provided to influence correct play of a card as well as the effect of the card when applicable. You have to already have a basic knowledge of Game Mechanics to help you understand some, if not all, Yugioh TCG Card Effects, to include Monster, Spell, and Trap's.
Examples of cards that needed "help" in rewording their effect or use were
Ultimate Offering
Skill Drain
Fushioh Richie
Chaos Sorcerer
Sacred Phoenix of Nephthys
Most of the above mentioned cards could ONLY be played correctly if you knew the complete Ruling or Card Effect Errata, as several have gone years before being changed to reflect what they actually did, versus what the card text stated.
Of course it would be simple if the text told you everything you needed to know in a couple of sentences, but that really isnt practical for all cards, and that is where Rulings and Judges come in to play. We can look at Skill Drain alone, and see that there is NO WAY they could list everything it can and can't do, even in a few sentences, and even if they could find a way, someone would misinterpret one key word, and all is lost.
Barrel Behind the Door may not be worded how you personally like it, but it works for nearly everyone else.