MapleSEA still has the glitch of not able to activate BoD once glitched, if you get glitched you cannot on BoD effect at all. It is a total waste of money. As below, if you spam bod before shield break, it will get glitched = whole boss fight cannot use BoD until you change to a new map!
Known "bugs/features", whatever Nexon wants to call them. KEKW
-Don't cast BoD before the shield-break animation happens and don't spam the BoD skill. After it happens, wait 5-10 seconds before casting the shield again.
-BoDs can possibly break right after you cast the shield if you get hit by a mob at the exact same instant, so try your best not to get hit while you are casting it. (This isn't always possible in a boss fight, but do what you can I guess.)
-Casting the shield right before you leave/enter a map can cause it to immediately break. Best rule of thumb is just to wait 5-10 seconds AFTER entering a map before casting it or cast it 5-10 seconds BEFORE you enter.
-If you use the shield the moment you get killed (HP to 0), you might glitch it.
-It can possibly break if you use it too soon after reviving.
-Only way to "fix" these bugs and unlock your BoD is by leaving a map, or changing phase and map in a boss fight (as mentioned in the video).