No. Digivolve from the Tamer as such, and do not treat it as if it is a digivolving Digimon. "When digivolving" effects and "when a Digimon digivolves" effects don't trigger.Additionally, if a "Digimon can't digivolve" effect has activated, you can still digivolve from a Tamer with this digivolve requirement.

Yes, you do.A digivolution bonus draw is performed for any kind of digivolution.

No, it can't. A card cannot attack on the turn it is played, even if it digivolves from a card placed on the field. It can only attack if it was not played that turn.

Yes, it is.If the Digimon leaves the field, that Tamer is trashed like normal digivolution cards.

No, it does not.

Yes, it does.