Upcoming siege changes in next major update

Bashev · March 2016

Lightning Ballistae now include a "Magicka Damage" value added, which takes away roughly 10% Magicka damage per tick from enemy targets.
Does the magicka drain work?

zZzleepyhead · April 2016

Cogo wrote: »

What is the reason for changing purge to not work on sieges?
I don't understand what the improvement would be?

Cyrodiil isn't for combat, clearly. It's a siege warfare game.