Heavy Wind Kick

I have a hard time dealing with Heavy Wind Kick spammers online (I main Sabrewulf), especially when they cover themselves with an Endokuken. It seems to be totally safe on block, it beats out so many of my options, and I’m tired of losing to people who only know how to start combos with this one single move. After going into training mode, the only counters I could find were expertly-timed Shadow Eclipses and, if they used an Endokuken and everything times perfectly, a Shadow Counter. I’m no fighting game genius, so those were the only things I found. What are the best ways to deal with this move, character-specific or general?