The goal of Marina’s means is a room, not a door. With Return the Favor your opponent can select a distinct room by means of its second means, however it’s all the time you who chooses the door to lock/unlock.
They mentioned that the flexibility targets a door of a Room, the place every door is a separate entity so-to-speak
That’s not appropriate. Return the Favor requires a goal. Solely objects and gamers could be targets.
115.1. Some spells and talents require their controller to decide on a number of targets for them. The targets are object(s) and/or participant(s) the spell or means will have an effect on. These targets are declared as a part of the method of placing the spell or means on the stack. The targets can’t be modified besides by one other spell or means that explicitly says it may achieve this.
109.1. An object is a capability on the stack, a card, a duplicate of a card, a token, a spell, a everlasting, or an emblem.
A Room is an object. It has two halves since it is a cut up card, however you possibly can’t goal these halves individually; the halves usually are not objects in themselves. Solely the complete room everlasting that incorporates them is an object. Even when doorways have been objects, Marina’s means nonetheless solely targets rooms; her means must say explicitely that it may goal doorways.
The one alternative you make as you activate Marina’s means is which room to focus on. That can be the one alternative your opponent can change by means of Return the Favor’s second mode.
- Casting Spells
601.2c The participant declares their alternative of an acceptable object or participant for every goal the spell requires. [..] [Process is the same for abilities]
Moreover, with the second mode, your opponent has to choose a totally different room, if attainable.
115.7a If an impact permits a participant to “change the goal(s)” of a spell or means, every goal could be modified solely to a different authorized goal. If a goal can’t be modified to a different authorized goal, the unique goal is unchanged, even when the unique goal is itself unlawful by then. If all of the targets aren’t modified to different authorized targets, none of them are modified.
When the flexibility resolves, you because the controller of the flexibility select which door to lock/unlock. That’s merely a part of the flexibility’s set of directions. Your good friend is appropriate in that the door you select will change its lock state.
Your opponent might additionally selected the primary half of Return the Favor, thereby copying your means. That would go away your copy unaffected, and your opponent’s copy would resolve first. In case your opponent unlocks the door you needed to unlock anyway, you do not have to choose the identical door. You possibly can simply select the opposite door, and your most well-liked door would keep unlocked. Once more, you make that call solely as your means resolves, with full data of what occurred earlier than.