There's a variamt of chess created by GM Yasser Seirawan wherein he seeks to stoke the heady flames of tactical attacking chess where he introduces two new pieces: the hawk (which moves like a bishop + a knight) and the elephant (which moves like a rook + a knight). The problem is, there's absolutely nowhere to play it online! I wish I had the skills to build a site/mod lichess to make it work, but lichess isn't interested in adding new variants. If anyone's looking for a project...