This is a page for various rulings for interactions that aren't tied to a specific card.
Attached Cards
If a card is attached to a non-MP card in play, and the card it is attached to leaves play, the attached card no longer has a target, is no longer considered to be attached to anything, and will be discarded.
If something causes an attached card to lose all effects (e.g. Tenshinhan's Solar Flare), it will remain attached. If that attached card has a detach clause in its card effects, meeting that requirement will not cause the card to detach as it has lost that effect.
Cards that do conflicting things "after use"
When a card that already sends itself other than discard "after use" (e.g. "Banish After Use") and gains another (e.g. playing Namekian Clamp to stop an attack while Quick Blast is attached), apply all of them in sequential order as appropriate starting with printed text, then continuing in the order that they appeared. To continue with the example of Clamp vs Quick Blast, you would first shuffle Clamp back into your Life Deck, then Quick Blast's attempt to banish it would fail due to the Hidden Zone ruling. [source]