Blood surge. When it procs you gain the buff. And slam ia instant fot the duration. Slam cast should conaume the buff.
Enrage. Deathwish bug.
When enrage procs with deathwish up it removes it and vice versa.
When a player dies in a battleground and rezzes at the graveyard they receive a buff that reduces the cost of spells for a few seconds, was implemented to buff for free after dying. Battleshout seems to not be free with the buff. Now if its an oversight of mine and it shouldnt apply , my mistake, but i think it should, the DK shout for WOTLK was usable. Perhaps its intended to not be used, i will do some resaerch