Talk:Roaring Slash!! Gargantua Punisher!!/@comment-24776115-20150213150329/@comment-27276068-20150213153617

If you used sleipnir as a counter to gargantua, the damage still goes through as the "open center" is a condition to cast it, your opponent already casted gargantua (but not resolve) by the time you can use a counter to it.

You can however sleipnir upon declaration of final phase to stop a potential gargantua