which answer are you talking about, when there is no answer.
No, activated abilities cannot be used as instants in a game.
No, creature abilities cannot be used as instants in a game.
No, "crumbling" is not an adverb.The word "crumbling is a noun and a verb.
In tournaments, probably not. Instants are just that, instants. When you play an instant, usually straight from your hand after paying the mana cost, you MUST activate the effect.
Is crumbling roof an adjective?crumbling is an adjective roof is a noun.
instants
The cast of Quelques Instants - 2010 includes: Michel Gratton
the wall is crumbling
crumbling in Tagalog: gumuguho
A creature with shroud cannot be targeted by instants, sorceries, or any other spells or abilities that target. However instants such as Evacuation will affect the creature because the spell does not target.
immodium instants
No, you cannot cast instants during the untap step in Magic: The Gathering.