Null abilities of dryad of the ilysian grove with witness protection
When I use Witness Protection on my opponent's Dryad of the Ilysian Grove for some reason it doesn't null the effect Dryad gives to my opponents lands. My opponent can still use the lands as if they were any type.
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Rezzahan#77802
commented
The lands cannot just be used as if they were any type, they ARE ALL basic land types.
The reason is the layer system. The Dryad changes types, and thus applies in layer 4. Ability losing happens way later in layer 6. So the types are changed before the ability changing them is lost. Regardless of time stamp, because layer order takes precedent.
Furthermore, because of rule 613.6, any type changing ability that also has other effects like modifying power/toughness gets to apply fully, even if the later parts happen after the ability generating them is lost.
There is a looooong list of cards, were this happens, and it is not a bug. Ashaya, Kaito, Ygra, Kudo, etc.