Instant could not be used
Hello,
I had the problem (on the IOS Client) that The Long Goodbye was not castable in my last match when my opponent played Valgavoth's Faithful even tho I had enough Mana up. And I know its not a negate. I did not have the option when it was on the battlefield. Instead my opponent could instantly use its ability which I should also be able to then use The Long Goodbye on the Stack but I could not.
Drethaldier#50305
shared this idea
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Rezzahan#77802
commented
No, when an object on the stack finished resolving, the active player gets priority. They can then take an action with it, without the opponent getting any chance to do something. They have priority, you do not. If the stack is empty and it is also their main phase, they can proceed with something requiring sorcery timing, without you getting to do something before then.
Instant does not means "get to do something before any sorcery", it just means "you get to do this thing while you have priority". If you do not have priority, you cannot use an instant, or activate an ability, or take a special action requiring instant timing.