Maintenance for the week of May 18:
• NA megaservers for maintenance – May 18, 4:00AM EDT (8:00 UTC) - 9:00AM EDT (13:00 UTC)
• EU megaservers for maintenance – May 18, 8:00 UTC (4:00AM EDT) - 13:00 UTC (9:00AM EDT)
Npcs can still use sparks.
It's not entirely removed from the game, just out of reach to the players

Why is miss chance removed from everything we can use?