Where does this need to be? In your hand? I think the reminder text should say so.

Do you think so? Similar abilities, like Prowl (Latchkey Faerie), don't mention it.

I'm actually more concerned with the timing restrictions (or lack thereof) when casting sorceries in response to other sorceries. Might have to change the template to allow this (like suspend and madness allows casting creatures at instant speed).

Right now I'm testing three four five different templates for this ability:

1. Whenever you cast a sorcery spell, you may cast this spell for its link cost. (Current one)

2. If you control a sorcery spell, you may cast this spell for its link cost. (Dangerously close to referencing the stack)

3. If you control a sorcery spell, you may cast this spell for its link cost and as though it had flash. (Explicit version, I'd like to omit this if possible)

4. Whenever you cast a sorcery spell, you may exile this card from your hand. If you do, cast it for its link cost. (Madness-like)

5. When you cast a sorcery spell, cast this spell for its link cost. (Imperative version)

Suggestions?

Step one: Remove all variants with "When[ever]" - triggered abilities do not work from hidden zones without rewriting a sizable portion of the rules.

You can make your life a whole lot easier by restricting this to instants regarding the wording of the ability. Right now #2 has timing issues.

That leaves me with option 3 and 2 others I thought of earlier:

1. If you control a sorcery spell, you may cast this spell for its link cost and as though it had flash.

2. As you cast a sorcery spell, you may exile this card from your hand. If you do, cast it for its link cost.

3. As you cast a sorcery spell, you may reveal this card from your hand. If you do, cast it for its link cost.

I prefer option 2, but I'm not sure.

Another idea, copying the rules of Miracle, the reminder text would read:

Link to sorcery (You may cast this card for its link cost when you cast a sorcery spell.)

And the actual rules would be:

Link is a static ability linked to a triggered ability (see rule 603.10). "Link to [type] [cost]" means "You may reveal this card from your hand as you cast a [type] spell. When you reveal this card this way, you may cast it by paying [cost] rather than its mana cost."

Not sure how you have thought about using this, but you might be better off with "splice onto sorcery". In this card at least you wouldn't lose much.

but you might be better off with "splice onto sorcery"

I thought about that, but it wouldn't work for 3 reasons:

1. I want this mechanic to feel more like Surge and less like Splice.

2. Most cards won't return to hand after cast (this card is an exception, not the rule).

3. I want permanent cards with Link.