MTG Salvation

Hey all.

So, from what I can tell, it looks like aftermath cards, such as Start // Finish, are just the part being cast while on the stack but are both colors elsewhere. So, my question is, does that mean that I can target a Stormbreath Dragon with the Finish side of Start // Finish or not?

Thanks!

Yes, you can. While on the stack it's a Black spell.

Thank you!