The "and/or" in the rules text is just to cover creatures that carry more than one creature type and ensures they are still eligible to activate this ability
It won't transform while on the battlefield except in some very unusual circumstances (or as they're called on Innistrad, circumstances)
(The targeted creature remains destroyed.) (10/1/2009) A "creature card" is any card with the type creature, even if it has other types such as artifact, enchantment, or land
Battle Boxes: You'll get the full card set
To this, we must add OP01-054-xdrake who has undoubtedly found his best deck, and OP06-036-ryuma, who with the same effect are together in charge of keeping the opponent's field clean with redundancy thanks to the cost reductions of the Black color and the ability to rest the opponent characters of Green
lets talk about that Dondozo now