Black Horn of Heaven cannot be used against the Special Summon of the Xyz monster performed by those Spell cards as it is not considered an Xyz Summon.
Team/Forum is now running on Standby, as many members have left. --------------------------------------
No Tournaments/Wars will be organized as there are not enough people to participate. --------------------------------------
The Rulings Section will keep on going though, serving as a database for confusable/difficult rulings. --------------------------------------
~Reaper of the Cards