Was looking at the new changes:
Death Siphon now heals for 150% of the damage dealt (was 100%).
Conversion now costs 5 Runic Power plus 5 per second thereafter (was 10 Runic Power plus 10 per second).
From a blood perspective Conversion still seems useless as its still 25 RP for just 15% of your HP back, and it still kills your RP generation for blood tap.
Death siphon, however, looks to be a much more interesting choice. Originally DSi could not compete with DS due to mastery until the healing from it got to absurd levels via AP (usually 200k+ AP for me). With the change we only need 75% of the current AP values to make it worthwhile for healing and only around 55-75k AP to make it hit harder than DS. I might actually try this out once PTR hits to see if it would be viable to make a DSi healing setup for blood.
Your thoughts?